Active-type multi-level wireless networking transmission system under high and low frequency stresses for ocean engineering structure

An active-type multi-level wireless networking transmission system under high and low frequency stresses for ocean engineering structures, comprising:

• multiple sensor units, a multi-channel data acquisition unit, a micro-control processor unit, a data wireless transmission unit, a server unit and a feedback monitoring unit, wherein
• the multiple sensor units are configured to monitor vibration responses of the ocean engineering structures and convert mechanical vibrations into electrical signals for an output signal;
• the multi-channel data acquisition unit, connected to the multiple sensor units, is configured to acquire the output signal of an acquired monitoring data of the multiple sensor units, convert the output signal into a digital signal, and transmit the digital signal to the micro-control processor unit;
• the micro-control processor unit is configured for preprocessing the acquired monitoring data and a data storage, and is connected to the data wireless transmission unit via serial port communication;
• the data wireless transmission unit is configured to send the preprocessed acquired monitoring data by the micro-control processor unit to the server unit in real time;
• the data wireless transmission unit contains a high and low frequency remote data wireless transmission module, adopting an encoding and decoding algorithm combining Hamming codes and parity check codes to transmit the preprocessed acquired monitoring data, and setting a high and low frequency conversion threshold value;
• in a low frequency operation mode of 1 hertz (Hz), the preprocessed acquired monitoring data, when less than the high and low frequency conversion threshold value, is transmitted to the server unit in a low frequency range;
• and
• the preprocessed acquired monitoring data, when greater than the high and low frequency conversion threshold value, is transmitted to the server unit in a high frequency range, triggering a high frequency operation mode of 55 hertz (Hz) for data transmission;
• the server unit is configured to receive the preprocessed acquired monitoring data in the real time, perform data processing, storage, and visual analysis on monitoring results of the preprocessed acquired monitoring data and perform early warning in the ocean engineering structures;
• and
• the feedback monitoring unit is configured to realize feedback monitoring and threshold value correction for multiple sensing systems of the active-type multi-level wireless networking transmission system.