Wireless charging and power supply method for wireless sensor network node
A sensor network and wireless sensor technology, applied in the field of sensor networks, can solve the problems of wireless sensor networks that are not suitable for the random distribution of nodes and high power, and achieve the effects of avoiding no-load energy waste, prolonging life, and realizing intelligence
A sensor network and wireless sensor technology, applied in the field of sensor networks, can solve the problems of wireless sensor networks that are not suitable for the random distribution of nodes and high power, and achieve the effects of avoiding no-load energy waste, prolonging life, and realizing intelligence
CN102157988BInactive Publication Date: 2013-07-31SOUTHEAST UNIV
Image
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] figure 1 It is a wireless sensor network power transmission system composed of a charging power supply host and a sensor network node charging power supply slave adopted by the method of the present invention. The charging power supply host is such as figure 2 , 4 , 9, it contains a control processor, a controllable scanning frequency source, a rotatable transmitting antenna and a wireless communication module. The control processor (MCU) adopts a low-power processor with an AD module. The controllable scanning frequency source is a voltage-controlled oscillator (VCO). Changing the input voltage can change the frequency of the oscillator output signal. When the input voltage is constant DC When the input voltage is a triangle wave or a sawtooth wave, it is a stable oscillator, and when the input voltage is a triangle wave or a sawtooth wave, it becomes a scanning frequency source. like Figure 12. In the charging power supply host circuit, the modulation voltage of...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a wireless charging and power supply method for a wireless sensor network node. A wireless electrical energy transmission system consisting of a charging and power supply host and a node charging and power supply slave is involved, wherein the charging and power supply host is provided with an energy transmission circuit which has adjustable transmission frequency and power, measurable transmission current and a rotary transmission antenna; and the node charging and power supply slave is provided with a wireless coupling receiving circuit, a multidirectional coupling receiving antenna, a charging and power supply voltage detection circuit and a booster circuit. Optimal coupling frequency and optimal transmission power between the transmission circuit and the receiving circuit are found by scanning the transmission frequency and detecting the detection current, an optimal coupling direction between the transmission antenna and the receiving antenna is found by rotating a charging and power supply antenna, and charging and power supply information is exchanged by a wireless communication channel to determine whether charging and power supply are required or not between the host and the slave and determine charging and power supply frequency and power and the direction of the transmission direction. Therefore, the wasting of idle energy sources is avoided when the slave is not charged and supplied with power, and high wireless charging and power supply efficiency, long wireless charging and power supply distance and high wireless charging and power supply speed are ensured.
Description
technical field [0001] The invention relates to a wireless charging and power supply technology for electrical equipment, in particular to a wireless charging and power supply method for a wireless sensor network node, which belongs to the technical field of sensor networks. Background technique [0002] The rapid development of sensor technology, electronic technology, wireless communication technology and low-power embedded technology has given birth to Wireless Sensor Networks (WSN), which is characterized by its low power consumption, low cost, distributed and self-organization. It has brought about a revolution in information perception. A wireless sensor network is a network composed of sensor nodes, which can monitor, perceive and collect various information (such as light intensity, temperature, humidity, noise, and harmful gas concentrations) of the sensing objects of interest to observers in the deployment area of ββthe nodes in real time. and other physical pheno...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
31 Jul 2013
Publication
CN102157988B
- IPC
- H02J17/00; H02J7/00; H02J50/12
- CPC
- Y02B60/50; Y02B40/90
- Inventors
- ε΄ει; ζε»ΊζΈ