Mobile RFID (radio frequency identification) reader-writer terminal and ad-hoc network thereof based on WIFI (wireless fidelity)

Abstract

The invention provides a mobile RFID (radio frequency identification) reader-writer terminal and an ad-hoc network thereof based on WIFI (wireless fidelity). The terminal comprises a wireless communication module and a radio frequency identification module, wherein the wireless communication module is used for maintaining a routing table containing path information and access points reaching eachof other mobile RFID reader-writers, receiving messages and data from the radio frequency identification module, transmitting the messages and the data and updating the routing table, and the radio frequency identification module is used for reading and writing an electronic tag in a wireless communication range, and correspondingly receiving and processing the data through the wireless communication module after the electronic tag is activated when entering an operating area of the radio frequency identification module.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, and more particularly, to a mobile RFID reader-writer terminal and a WIFI-based self-organizing network. Background technique [0002] The RFID reader terminal is a data collection terminal connected to the Internet under the Internet of Things architecture. It acquires data through radio frequency technology and operates the tag accordingly. At present, the tags under the EPC architecture use a unique EPC code, which is identified by the RFID reader terminal. The RFID reader terminal is usually pre-installed in a fixed position and cannot be moved at will. Through the movement of the tag, the RFID reader terminal collects the tag data based on the radio frequency identification technology, and uploads the tag data to the Internet through the connected data line. The traditional RFID reader terminal can only operate the tag correspondingly within a certain range. For specific app...

AI Technical Summary

Problems solved by technology

[0006] In general, there are three main problems in the existing technology: first, the propagation distance of the Bluetooth and zigbee wireless propagation technologies adopted is limited; second, the bandwidth of the current wireless propagation technology is limited, resulting in increased propagation delay; Third, the current mobile RFID reader and the wireless access point (AP) in the Ethernet are connected point-to-point, that is, an RFID reader is connected to an AP to access the Internet. When there are multiple wireless RFID When the reader / writer exists, it will be bottlenecked by the access point, which will affect the transmission rate. Increasing the access point will cause a waste of resources

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