Ship draught detection system and working method thereof

A detection system and ship technology, applied in the direction of measuring devices, equipment for reducing ship motion, equipment for increasing ship stability, etc., can solve problems such as large measurement errors and large differences in sound velocity values, and achieve elimination of influence, improvement of accuracy, and shortening The effect of measuring distance

Active Publication Date: 2015-03-04
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

[0006] 2. The sound velocity value used is quite different from the actual value
The sensor measures the distance of the temperature-varying layer in the shallow water area, and the temperature is not a single value, resulting in large measurement errors

Method used

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  • Ship draught detection system and working method thereof
  • Ship draught detection system and working method thereof
  • Ship draught detection system and working method thereof

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing, the present invention will be further described:

[0042] Such as figure 1 As shown, a high-precision draft detection system includes a water datum measurement device 3 , a single-beam ultrasonic sensor array 6 , a sound velocity calibration device 7 , a temperature measurement device 8 and a draft detection processing unit 9 . The detection gate 5 is installed on the floating body or the fixing device 1 through the cable 4, the single-beam ultrasonic sensor array 6 is installed on the detection gate 5, the sound velocity calibration device 7 is installed at both ends of the detection gate 5, and the two ends of the detection gate 5 are passed through the cable 4 Suspended by two hoisting devices 2 at the position where the preset underwater depth is H, and the above-water datum level measuring device 3 is installed on the two marked points, if one side is suspended by a cable 4, one above-water datum level measuring devic...

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Abstract

The invention discloses a ship draught detection system and a working method thereof. The system comprises a single-beam ultrasonic sensor array, a detection door, a water reference surface measurement device, a temperature measurement device, a sound velocity calibration device and a draught detection and process unit. The sound velocity calibration device comprises a long-distance shield ultrasonic wave device and a short-distance shield ultrasonic wave device which are arranged on the two sides of the detection door respectively, and the long-distance shield ultrasonic wave device and the short-distance shield ultrasonic wave device are used for reflecting ultrasonic wave which is transmitted from one or more single-beam ultrasonic sensors on the two sides of the detection door. The measurement of the mounting depth of the underwater detection door is changed into the measurement of the water distance, simultaneously the measurement distance is shortened, the precision is greatly increased, and the error is reduced. The temperature of the ultrasonic sensor array is measured by the temperature measurement device, and the used average sound velocity value is corrected. The accuracy of the sound velocity value in site is increased.

Description

technical field [0001] The invention relates to the technical fields of ship draft detection, ship traffic detection, ship safety detection, etc., in particular to a ship draft detection system and a working method thereof. Background technique [0002] With the development of the economy, the volume of inland shipping in my country has increased year by year, and the number and density of ships in the waterway have increased significantly. The threat of ship draft exceeding the limit to shipping safety has become increasingly serious. In order to ensure the safety of the waterway and the efficiency of navigation, it is necessary to measure the draft of the ship . [0003] The existing ship draft detection system is to fix the single-beam ultrasonic sensor array on the detection door, and the two ends of the detection door are suspended on the hull as a floating body with cables or fixed on the bridge frame, or sunk on the bottom of the water. By transmitting ultrasonic wave...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B39/12G01B17/00
Inventor 熊木地陆雷刘新建张慧
Owner DALIAN MARITIME UNIVERSITY
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