11/12/2023 0 Comments Internet highwaysAfter Preprocessing and resampling of the data, Spectrogramic analysis is done for accident and non-accident audio signals.After reconstruction of the signal one can can do the re sampling on desired rate (in this case it is 16 kHz). At command center, from given data audio signal is reconstructed.If the intensity of captured data is higher than threshold then Intel Galileo sends this entire data frame to command center using wireless communication (Xbee).Network of audio sensors installed on the highway collect the data which is first preprocessed and their intensity is calculated by local(nearer to sensor) Intel Galileo Gen-2.The system is composed of three main signal processing stages: feature extraction, feature reduction, and classification. Mode of operation, the system identifies crashes as well as several types of noncrash incidents, including normal traffic and construction sounds. The output of the two-class mode is a label of "crash" or "noncrash." In the multiclass The system can be operated in two modes: the The input to the system is a 3-s segment of audio signal. MATLAB was used to detect accident sounds from the speech signals obtained.Įach module is described below: (Speech signal processing) Arduino IDE was used to write sequential codes for the modules.Īll the sensors used ZigBee protocol for wireless serial communication. The aforementioned modules were integrated using Intel Galileo Gen 2 IoT kit. The highway monitoring system is divided into different modules: Various sensors have been deployed on highway which report the status of the same to a central control station. This is the implementation of a robust system for real time monitoring of highways.
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