Wireless bus communication method based on backscattering

Abstract

The invention discloses a wireless bus communication method based on backscattering, and belongs to the field of backscattering. The method comprises the steps that a gateway sends a wireless signal containing a clock and data to a processor-free Internet of Things terminal, meanwhile, the wireless signal containing the clock serves as a carrier wave, and when a sensor chip has output data, a datasignal in a standard data bus signal is modulated to the carrier wave and transmitted back to the gateway. A traditional computer bus signal is converted into a wireless signal through a passive backscatter communication technology, and the terminal does not need to generate a high-frequency carrier for wireless communication, so that the communication power consumption is reduced; moreover, thedata and the clock of the computer bus signal can be simultaneously transmitted through one path of wireless signal, and the gateway can be directly recovered into a digital bus signal after receivingthe wireless signal, so that the direct intercommunication of the computer bus signal and the wireless signal without the participation and control of a processor is realized in the uplink communication direction.

Description

technical field [0001] The invention relates to the field of backscattering, in particular to a wireless bus communication method based on backscattering. Background technique [0002] In the current general architecture of IoT terminals, the terminal contains three necessary modules - wireless communication module, sensing module and processor. The wireless communication module is responsible for wireless data exchange with the IoT gateway; the sensor chipset is used to perceive the physical environment; the processor is located between the wireless communication module and the sensor, and implements control and intermediate data processing for both. Among them, the frequency of use of the sensor is usually low, and the typical power consumption is generally only at the microwatt level. In contrast, wireless communication and processors account for the vast majority of terminal energy consumption, with typical power consumption at the milliwatt level. In recent years, wit...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wireless bus communication method based on backscattering to solve the problem of high power consumption in the current traditional backscattering technology

Images