Wireless intelligent label refresh control method and device based on Internet of Things

Abstract

The invention discloses a wireless intelligent label refresh control method and device. The method comprises the following steps: enabling a plurality of wireless intelligent labels to be used as wireless slave end equipment in a low-power-consumption standby state, and according to a synchronous sequence beacon sent by wireless master end equipment and received in a synchronous detection receiving time slot of the intelligent labels, processing synchronous detection time sequence based on a synchronous matching state; and enabling the wireless intelligent labels to identify and judge the synchronous group control code contained in the synchronous sequence beacon, and when and only when the wireless intelligent labels belong to the group member set selected by the synchronous group controlcode, enabling the wireless intelligent labels to execute corresponding refresh control operation according to the group control operation mode and refresh mode parameters pointing to batch refresh.The wireless intelligent labels perform synchronous detection time sequence processing in a low-power-consumption standby state, and has the advantages of quick identification and concurrent responseto synchronous control signals, high batch refreshing operation and state monitoring efficiency, flexible refreshing mode, good convenience in field query and verification operation, and high safety.

Description

technical field [0001] The present invention relates to the technical field of wireless communication and intelligent control in the edge domain of the Internet of Things, in particular to a method and device for refreshing control of wireless smart labels based on the Internet of Things. Background technique [0002] The Internet of Things and related wireless communication technologies are one of the important supporting technologies for the rapid development of smart technology, which brings about the rapid development of various smart hardware devices and smart service system product innovations for individuals, households and different application industries. For different intelligent application scenarios, the edge domain of the Internet of Things with dynamic information interaction characteristics composed of edge service nodes and several target devices around them (i.e. network client devices) is mainly oriented to solve the wireless network of the target object dom...

AI Technical Summary

Problems solved by technology

[0006] The refresh control and device of wireless smart tags based on the Internet of Things mainly need to solve three problems: 1) the ultra-low power consumption of wireless smart tags in the standby state; 2) the synchronous response of the wireless smart tag group to the refresh control signal and Batch refresh issue; 3) Convenience and security issues based on field interoperability

[0007] In the existing technology, although wireless directional broadcasting has a simple topology structure, less wireless resource occupation, high synchronous data transmission efficiency, fast trigger response speed, simple wireless protocol, and good interoperability, it has obvious defects: asymmetrical data transmission direction low efficiency of asynchronous data transmission; low efficiency of data receiving feedback monitoring and high power consumption of wireless receiving end

[0008] Although the wireless multi-point connection can be multi-point two-way wireless data transmission, wireless data transmission is stable, asynchronous connection communication is convenient and relatively high security, but it also has certain defects: such as the long response time for establishing a connection, the environment and resource factors It is more sensitive and takes up a lot of wireless channel resources, especially when the number of client devices is large, the stability of wireless multi-point connections tends to deteriorate, the transmission distance is shortened, and the transmission power consumption is increased

[0009] Although the existing wireless Mesh network is simple to install and configure, easy to quickly set up a network, flexible wireless transmission path, strong redundancy mechanism and communication load balance, and low wireless transmission power, it also has obvious defects, such as: poor wireless interoperability compatibility , High wireless communication delay, poor coordination of cross-coverage of different wireless standards, especially for low-power client devices, it is not suitable for Mesh relay nodes, and the balance between standby power consumption and trigger response time must be solved

Images