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

A wireless identification and display node technology, which is applied in wireless communication, power management, energy consumption reduction, etc., can solve the problems of intuition and convenience, increased hardware cost, troublesome display methods, etc., to achieve low cost, improve utilization efficiency, and high efficiency Effects of Energy Management Strategies

Inactive Publication Date: 2019-03-08
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with drawings and embodiments.

[0025] This embodiment provides a technology for displaying data on an ink screen in the field of low power consumption energy capture and radio frequency reflection communication. The technical solution provided by this embodiment is as follows, including "circuit design" and "energy saving strategy".

[0026] Circuit Design: Although this embodiment is developed on the basis of the WISP platform, considerable improvements have been made to the WISP platform itself. In energy harvesting and power management circuits, such as figure 2 , this circuit is composed of BQ25570 energy harvesting chip U1, supercapacitor SupCap, inductors L1, L2, resistors R1, R2, R3, R4, R5, R6, R7, capacitors C1, C2, C3, C4, C5, C6. Pins 0, 1, 5, 9, 15, and 17 of U1 are connected to GND. One end of the capacitor C1 is connected to the fourth pin of U1, and the other end is connected to GN...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02G09G3/34
CPCG09G3/344H04W52/0251H04W52/0261Y02D30/70
Inventor 朱艺华张玉繁李二涛郑可琛
Owner ZHEJIANG UNIV OF TECH
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