Low-power wireless transmission system and transmission method thereof

Abstract

A simple, efficient, ultra-low power consumption, and low-power wireless transmission system with strong wall-penetrating capability and a transmission method suitable for use in the underlying communication in the smart home field. It sets up a MacBee protocol network system between the smart home and the Internet. There are several gateway nodes and device end nodes in the network system. The communication transmission cycle of the gateway node adopts a fixed cycle, and the communication transmission cycle of the device end nodes adopts Integer multiples of the fixed period, the communication protocol message between the gateway node and the device end node is divided into a synchronization frame and a data frame, the load of the synchronization frame can be as low as 1 byte in the state of no control command, and the device end can The analysis of the frame determines whether to receive the data sent by the gateway node, and the device of the device end node is in a deep sleep state in the non-transmission time slot. It has the advantage of greatly reducing power consumption on the device side.

Description

technical field [0001] The invention relates to a communication system and a communication protocol used in smart home, in particular to an ultra-low power consumption wireless transmission system and a transmission method thereof. Background technique [0002] Smart home is currently a hot emerging direction. In the field of smart home, the communication protocols between smart nodes and home gateways are currently more common, such as Wi-Fi, Zigbee and Bluetooth. But these schemes all have obvious deficiencies, hindering the speed of its popularization. [0003] Wi-Fi consumes a lot of power and is expensive, so it is basically unusable in battery-powered situations. The data length of the Beacon frame of Wi-Fi is as high as dozens of bytes, and it takes a long time to receive it completely. [0004] Zigbee's complex protocol and huge code will inevitably affect the development cost and system stability; Zigbee's self-organizing network function is not practical in the h...

AI Technical Summary

Problems solved by technology

[0005] The transmission distance of Bluetooth is within 10 meters, and a solid wall cannot penetrate it, so it is not suitable for home smart home networking

The PHY layer of the Bluetooth protocol stack only has 126 bits (15.75 bytes) for the access code and the header, plus the overhead of the link layer, it is even bigger

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