The Pass-by Noise Data Acquisition System
The Pass-by noise solution consists of two separate data acquisition systems - master and slave DAQ system.
1. Master DAQ System
Master DAQ system is placed in the vehicle under the test and offers all the processing power for storing, analyzing and visualizing results and step-by-step instructions for the driver. All the results are available and visible in real-time.
The master DAQ system acquires and stores all the vehicle positioning and velocity data, and can additionally also acquire data from CAN, CAN FD bus, FlexRay, XCP/CCP, video, and many others. This measurement system also saves the synchronizes data from the outside, slave data acquisition system.
2. Slave DAQ system
The second data acquisition system - slave DAQ system - is placed outside and is stationary. This DAQ system acquires data from precise IEPE microphone(s), IR temperature sensors, asphalt temperature, and optional wind speed, air temperature, humidity and other environmental parameters.
Both systems are based on R2DB data acquisition system.