A wireless meter reading method based on lora hierarchical topology network

Abstract

The invention relates to a wireless meter reading method based on a LORA hierarchical topology network. A wireless LORA meter reading module is designed, which has the data interaction capability with a concentrator and an electric energy meter, and can realize wireless networking by relying on its own radio frequency chip. Its networking is a hierarchical topology, which realizes fast reading, efficient networking, and scalable network mode. Multiple meter reading paths are designed to improve the success rate of meter reading. With the upgrading and transformation of smart grids, wireless meter reading, It is of great significance to the entire power industry to achieve rapid networking, reduce nodes, increase reading speed, and improve the success rate of wireless meter reading while reducing wiring construction and cost saving.

Description

technical field [0001] The invention relates to a wireless meter reading method. Background technique [0002] At present, there are three main categories of solutions for meter reading in the power industry that do not require construction and wiring, such as telecommunication operations, power carrier waves, and wireless modules. The self-contained 2g / 4g / nb module communication is not limited by distance, and needs to be paid to telecom operators on a regular basis, and the maintenance cost is high; It takes a long time; wireless modules, such as zigbee and Bluetooth, have short transmission distances and are not suitable for long-distance meter reading. However, the general fsk modulation technology for wireless meter reading has many problems, the success rate of data reading is not high, and the networking efficiency Low, low efficiency of reading, greatly affected by the external environment, once the node and the upper node are disconnected, the central node cannot c...

AI Technical Summary

Problems solved by technology

The communication of the built-in 2g / 4g / nb module is not limited by the distance, and it needs to pay fees to the telecom operator regularly, and the maintenance cost is high; the transmission distance of the meter reading carrier signal by the low-voltage power line carrier technology is relatively short, resulting in many relay nodes and meter reading It takes a long time; wireless modules, such as zigbee, bluetooth, etc., have a short transmission distance and are not suitable for long-distance meter reading. However, there are many problems in the general fsk modulation technology wireless meter reading, the success rate of data reading is not high, and the networking efficiency Low, low reading efficiency, greatly affected by the external environment, once the node and the superior node are disconnected, the central node cannot communicate with the node, resulting in failure to read the table, the node is disconnected, and is offline. Low efficiency, there are redundant relays between the meter reading path nodes, and the reading efficiency is low

Images