The wireless distributed testing system is used for noise or vibration data acquisition, consisting of noise or vibration acquisition terminal, local control terminal, remote database storage and display terminal.

The acquisition terminal includes acoustic sensors (or acceleration sensors), signal acquisition modules, signal processing modules, internal storage modules, power supply modules, transmission modules (4G, Lora, Bluetooth, etc.).

For the testing scenario of Lora self-organized network, instructions are sent through the local control terminal to start data collection. The sensor converts the measured signal into electrical signal, which is amplified and then converted into digital signal through analog-to-digital conversion and sent to the signal processing module. This module calculates according to standard formulas, and then transmits the calculation results to remote database through modules such as 4G/Lora/Bluetooth.