Fast-access near field wireless communication module used for controlling communication range

Abstract

The invention relates to the communication field, in particular to a master communication module and a slave communication module, wherein the master communication module and the slave communication module have a controllable communication range and can be fast accessed into efficient wireless near field communication; the master communication module is used for sending a first distance reference signal which contains master communication module information and communication distance information; the slave communication module can judge whether the communication distance satisfies the preset range according to the received first distance reference signal; if so, wireless communication linkage can be quickly built according to a preset protocol to exchange data; and the first distance reference signal can adopt a low-frequency magnetic signal mode or an ultrasound wave signal mode to satisfy the requirement of near field access. The master communication module and the slave communication module disclosed by the invention provide a basic hardware carrier for instantly, quickly and efficiently exchanging wireless data within a specific distance range.

Description

technical field [0001] The invention relates to the communication field, in particular to a master communication module and a slave communication module for fast access to efficient near-distance wireless communication with controllable communication range. Background technique [0002] At present, high-speed wireless transmission has been widely used for data exchange on computers or mobile devices. Wi-Fi (IEEE802.11a / b / g / n standard), Bluetooth, Zigbee (IEEE 802.15.4 standard), and UWB (Ultra Wideband, ultra-wideband wireless transmission) and other technologies. These high-speed wireless communications enable information exchange and function sharing between computers or mobile devices. Users can implement streaming media file transmission, address book exchange, and shared access to the Internet in these mobile devices. These technologies are all aimed at long-term, multiple users, and long-distance (more than 10 meters) data exchange applications; when using this techno...

AI Technical Summary

Problems solved by technology

There are two problems in these RFID systems: the communication rate is too low and the communication distance cannot be flexibly controlled; and the tag side adopts a passive method, which requires a high transmission power of the card reader, and is not easy to be integrated in a portable mobile electronic device. equipment

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