Wireless sensor node system based on high-speed gearbox

Abstract

The invention discloses a wireless sensor node system based on a high-speed gearbox. The wireless sensor node system based on the high-speed gearbox is characterized by comprising a sensing and signal acquiring module, an anti-aliasing circuit, an A / D (Analog to Digital) collection module, a SoC (System On Chip) FPGA (Field Programmable Gate Array) system module, a data processing module, an SD (Secure Digital) memorizer, a ZigBee wireless radio frequency module, a GPRS (General Packet Radio Service) wireless communication module, a lithium battery charging module, a battery voltage monitoring module and a miniature vibration generator module. With the adoption of the wireless sensor node system based on the high-speed gearbox, the problems of high cost, complex wiring, poor flexibility, difficult maintenance and the like brought by a wired monitoring system can be effectively solved. The wireless sensor node system based on the high-speed gearbox is not only applied to the fields of low-speed and slowly changing signals, but also applied to occasions of high-speed signals. With the adoption of a high-performance MEMS (Micro-electromechanical Systems) sensor, the designed anti-aliasing circuit, an externally-expanded large-capacity SD card and the introduced compression sensing technology, the problems of missing acquisition of a large amount of data, frame dropping and the like generated in the process of monitoring the high-speed gearbox can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of wireless sensors, in particular to a vibration monitoring system for a high-speed gearbox, in particular to a wireless sensor node system based on a high-speed gearbox. Background technique [0002] Gearbox is an essential part of large-scale rotary machinery, and its working condition plays a vital role in the operation of the whole equipment. Due to the complex structure and special working conditions of the gearbox equipment, there is a very high failure rate, so it is extremely important to monitor the gearbox. The gearbox is often accompanied by vibration during operation. When a fault occurs, the vibration will increase abnormally and the energy distribution of the vibration signal will change. Therefore, the vibration analysis method is often used to diagnose the fault of the gearbox. For the operating characteristics of the gearbox, the traditional wired monitoring system mainly monitors the vibr...

AI Technical Summary

Problems solved by technology

②The main energy consumption during node operation is in the data transmission part, and high-frequency sampling will quickly consume node energy and cause the node to fail

③Wireless sensor nodes are generally powered by batteries, and the battery life is limited. Continuous replacement of batteries will pollute the environment

[0006] At present, there is no wireless sensor node on the market that meets the vibration monitoring requirements of high-speed gearboxes

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