Internet of Things communication system, gateway equipment and method based on star topology

Abstract

The invention discloses an Internet of Things communication system, gateway equipment and method based on a star topology. The system comprises a cloud server used for communicating with the gateway equipment, informing the gateway equipment of unique identifier information corresponding to each label which needs to be managed by the gateway equipment, and receiving label data of each label collected by the gateway equipment; the gateway equipment used for carrying out communication handshake with each label after obtaining an unique identifier of each label, using a time-division multiplexing mechanism to collect the label data of each label, and transmitting the collected label data to the cloud server; and a plurality of labels, which carry out data transmission with the gateway equipment according to the time-division multiplexing mechanism. The Internet of Things communication system based on the star topology provided by the invention can achieve a simple star Internet of Things topology with fewer resources, and ensure that the data transmission between the gateway equipment and each label is fast and stable.

Description

technical field [0001] The invention relates to the technical field of the Internet of Things, in particular to an Internet of Things communication system, gateway device and method based on a star topology. Background technique [0002] With the development of the Internet of Things, its use has become more and more extensive, covering many fields such as intelligent transportation, smart home, logistics supervision, and environmental collection. The Internet of Things uses a variety of network architectures, such as star structure, tree structure, Mesh Structure, etc., among which the star topology is the most common network structure. [0003] In the star topology, each node in the network is connected to a central node in a point-to-point manner, and the central node transmits information to each destination node and collects feedback information. In the Internet of Things, the nodes are like RFID tags and sensors, and the central node is like the brain and server. It n...

AI Technical Summary

Problems solved by technology

[0005] but either figure 1 still figure 2 The technical solution of the Internet of Things topology, the gateways in the topology of the Internet of Things are all implemented based on the MCU micro-control unit, and the RAM (Random-Access Memory, random-access memory) and Flash (flash memory) resources carried by this type of controller are very Lack, if you use the existing advanced protocol stacks such as Zigbee, Thread, BLE, etc., the resources of RAM and Flash will be very tight; and if you use the basic protocol stack (such as 802.15.4), these basic protocol stacks themselves have no anti-collision mechanism, when the device uses a unified time to reply, it will inevitably cause the gateway to be unable to process at the same time and lose part of the response message

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