Wireless communication method and system for power transmission and transformation equipment Internet of Things node equipment

Abstract

The invention discloses a power transmission and transformation equipment Internet of Things node equipment wireless communication method. A broadcast channel, a downlink control channel, a multicastchannel, a downlink shared channel, an uplink random competition channel and an uplink shared channel are arranged in a communication channel between master equipment and slave equipment in the powertransmission and transformation equipment Internet of Things; different channels are distinguished through channel type fields of the MAC frame header; communication processes between the master device and the slave devices are set and include a node broadcasting process, a random access process, a pre-allocation registration process, a scheduling communication process of an uplink shared controlchannel, a discontinuous reception DRX scheduling communication process, a communication process of a downlink shared control channel, a packet fragmentation process and the like. According to the invention, standardized access of mA-level power consumption state sensing sensors with large data volume such as power transmission and transformation equipment Internet of Things waveforms and the likecan be satisfied, networking between the aggregation node and the access node is realized, and the requirements of mA-level communication power consumption, sensor synchronous sampling and reliable networking coverage of a service scene are satisfied.

Description

technical field [0001] The invention relates to a wireless communication method and system for an Internet of Things node device of power transmission and transformation equipment, and belongs to the field of sensor communication of the Internet of Things for power transmission and transformation equipment. Background technique [0002] With the development of technologies such as the Internet of Things and wireless communication, the application requirements of wireless sensor networks in the intelligent transportation and inspection business of power transmission and transformation continue to increase. Compared with traditional wired monitoring, wireless transmission can effectively solve the problem of inability to transmit status sensing data in application scenarios such as charged objects and unwiring. At the same time, it simplifies the sensor structure, promotes the miniaturization and low cost of the sensor, and realizes quick installation and ready-to-use. The ove...

AI Technical Summary

Problems solved by technology

[0004] However, with the gradual application of wireless sensor networks, three problems have been exposed: 1) most of the existing IoT sensing devices use proprietary protocols, which cannot be compatible with each other, resulting in a large number of redundant construction of sensor network systems; 2) in the transmission and transformation In the power business, sensors with large data volumes such as partial discharge and vibration are widely used in the field of power transmission and transformation business. However, due to the large amount of data, such sensors put forward high requirements for network system scheduling.

At present, there is no unified communication protocol that can meet such business needs in the field of power transmission and transformation

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