Method for realizing quantity expansion of access equipment at Zigbee coordinator end

Abstract

The invention discloses a method for realizing quantity expansion of access equipment at a Zigbee coordinator end, which is realized based on ZigBee 3.0 and comprises the following steps: A, changinga network access process of Zigbee networking, and deleting a trust secret key acquisition and verification process link; B, reducing the risk that a secret key is intercepted by a hacker in the networking stage in a manner of reducing the secret key of the fixed network layer; and C, setting the maximum number of access devices and setting the version of the trust stack of the network security layer by changing the parameter setting of the software stack. The method provided by the invention can meet the Zigbee scheme needing a large-capacity node in the industry, has very high actual use value, and effectively expands the application range of the Zigbee scheme.

Description

technical field [0001] The invention relates to the technical field of Zigbee wireless communication, in particular to a method for expanding the number of access devices at a Zigbee coordinator end. Background technique [0002] With the development of Internet of Things (IoT) technology, many fields including industrial automation, smart home, and smart energy, the demand for wireless data communication is getting stronger and stronger. ZigBee is a low-power LAN protocol based on the IEEE802.15.4 standard , is a short-range, low-power wireless communication technology. Due to the advantages of low power, short delay, high capacity, and high security, Zigbee technology has begun to be used on a large scale in the industry. According to the data of the Industry Standards Association, the current global shipment of Zigbee has exceeded 500 million pieces, and the growth rate is getting faster and faster. come faster. [0003] The Zigbee network system consists of devices or ...

AI Technical Summary

Problems solved by technology

There are two ways for terminal nodes to access the coordinator: one way is to directly connect to the coordinator in a star topology, and the other way is to connect to the coordinator node after relay routing through routing nodes. In the traditional way , the number of nodes that the coordinator can support is generally about 20, and the method of expanding capacity is usually extended by means of relay routing. This method has several disadvantages: First, due to the The number of nodes is too small (about 20), so the efficiency of capacity expansion is not high. Second, after using routing relays, the topology structure will be complicated, which will have a great impact on the efficiency and stability of communication, especially the introduction of multi-level The relay situation will be more obvious

Images