Low power consumption display node based on wireless identification sensing platform WISP

Abstract

The invention discloses a low power consumption display node based on a wireless identification sensing platform WISP. The low power consumption display node disclosed by the invention comprises an antenna, an impedance matching circuit, an energy collection circuit, a voltage regulator, a modulation module, a demodulation module, a microcontroller, a sensor, and an ink screen circuit in a peripheral. The functions of the energy collection circuit and the voltage regulator are implemented by an energy collection chip BQ25570, and the chip captures radio frequency energy and is also used for generating a working power supply of the microcontroller; and the ink screen circuit adopts a chip SI1016X, and the SI1016X is controlled by the microcontroller to control the power on and power off ofthe ink screen. The energy capture technology used in the low power consumption display node disclosed by the invention captures the radio frequency energy in the environment to supply power to a nodewithout using a battery or a power supply facility, thereby being green and environmentally friendly, reducing the cost, and prolonging the working time of the node.

Description

technical field [0001] The invention relates to the fields of low power consumption wireless reflection communication and energy capture, in particular to the design of data display of reflection communication passive nodes. Background technique [0002] In passive sensory networks, nodes usually obtain energy from the environment, such as radio frequency energy, wind energy, solar energy, vibration energy, thermal energy, etc. When the energy is insufficient, the node enters a dormant state and collects energy from the environment; when the energy is sufficient, the node starts to work. This process repeats itself. WISP (Wireless Identification Sensing Platform) can capture the radio frequency energy in the environment, and can reflect the radio frequency signal in the environment for communication. [0003] WISP can support more complex sensing and computing tasks, can integrate low-power sensors to collect environmental data, and has the ability to perceive the environm...

AI Technical Summary

Problems solved by technology

The first two display methods are cumbersome and cumbersome, not intuitive and convenient enough, and connecting through a gateway or computer will increase hardware costs

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