Wireless charging and power supply method for wireless sensor network node
A wireless sensor and sensor network 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, high power, etc., and achieve the effects of avoiding no-load energy waste, improving life expectancy, and increasing angles
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[0031] figure 1 The wireless sensor network power transmission system composed of a charging and supplying host and a sensor network node charging and supplying slave used in the method of the present invention, the charging and supplying host such as figure 2 , 4 As shown in , 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 a constant DC When the voltage is high, it is a stable oscillator, and when the input voltage is a triangle wave or a sawtooth wave, it becomes a scanning frequency source. Such as Figure 12. In the charging and power supply host circuit, the modulation voltage of the controllable scan...
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