Design And Realization Of Remote Control Ultrasonic Monitoring System For Underwater Waterway

With the development of Jianghai intermodal and river and sea transport,water transportation is playing an increasingly important role in national economic construction.Under the influence of flow conditions,river bed form,river cross section and tide,the water depth of the channel is varied and the monitoring of the depth information is the prerequisite for the safe shipping of the ship.The monitoring of the underwater channel consists of two links.The first is to measure the water depth data of the channel and the second is to monitor the depth of the water depth.Because of the different navigation standards of different grades of waterways in China,and the channel is generally not too deep,up to tens of meters,this paper chooses ultrasonic measurement of channel water depth,design and implementation of continuous broadband ultrasonic measurement system for different grades of channel selection of different caliber,The ultrasonic monitoring system has the characteristics of high precision,low cost,timeliness and movement.The whole ultrasonic monitoring system has the characteristics of high precision,low cost,timely and movable.This paper mainly studies the work and innovation as follows:1.A continuous broadband ultrasonic measurement system is proposed.Software instead of hardware to achieve signal generation,signal processing and analysis modules,simplifying the system hardware structure;the use of continuous broadband chirp signal instead of the traditional pulse signal,increase the signal width,improve the measurement accuracy.2.Design the channel back-end display monitoring center.The use of VHF wireless transmission continuous broadband ultrasonic measurement system to measure the underwater channel information;use the cloud server instead of the traditional server,the establishment of MySQL database to provide visual monitoring of the underwater channel information interface to support the web version and PC client two ways to query display,So that you can view the current or past water depth conditions.3.The remote sensing ultrasonic monitoring platform of underwater waterway is set up,and the distance measurement function of ultrasonic underwater measurement system is verified.The rationality of the system is measured in the cylinder tank and is carried out in the indoor pool environment.Different frequency and caliber ultrasonic transducer performance comparison,measurement error rate is not higher than 2%,and in the school East Lake completed the entire monitoring system testing,and achieved good results,verify the feasibility of the system.