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Measuring method of longitudinal section bottom contour line of inland watercraft

A technology of inland waterway ships and measurement methods, applied in the field of measurement, can solve problems such as not being able to represent the real draft of ships, and achieve the effects of improving inspection efficiency, simple processing methods, and simple structure

Inactive Publication Date: 2015-12-23
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology

[0004] During the course of the ship, due to the influence of the trim of the ship and the contour line of the bottom of the longitudinal section, there are certain differences in the draft value of each part of the bottom of the ship, and the draft value of a single point of the ship cannot represent the real draft of the ship as a whole

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  • Measuring method of longitudinal section bottom contour line of inland watercraft
  • Measuring method of longitudinal section bottom contour line of inland watercraft

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Embodiment Construction

[0018] A method for measuring the bottom contour of the longitudinal section of an inland ship, the hardware involved includes: two sets of transmission devices are respectively arranged on both sides of the channel, one set of transmission devices is connected to the sound emission device, and the other set of transmission devices is connected to the sound reception device , the position of the sound receiving device and the sound emitting device are aligned, and the sound receiving device and the sound emitting device are driven by the transmission device to reciprocate up and down synchronously; the two sets of transmission devices and the sound receiving device are connected with a control device, and the transmission device The action is controlled by the control device; the method steps are:

[0019] 1) When there is no ship passing by in the channel or the draft of the ship is shallow, both the acoustic receiving device and the acoustic emission device stay at the set st...

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Abstract

Disclosed is a method for measuring a buttock bottom contour line of an inland river ship. The method comprises that an ultrasonic detection device is arranged on a channel and triggered by blocking of the ship to ultrasonic signals to reciprocate, and the ship buttock bottom contour line is obtained according to movement trails of the device. The method has the advantages that hardware equipment is simple in structure and low in cost, the adaptability to waters is wide, the method is particularly applicable to silt-laden and pebbly channels, measurement results are not affected by changes of water surface profiles, the standby height can be set according to seasonal change dynamics, and law enforcement efficiency of maritime law-enforcing departments is improved.

Description

technical field [0001] The invention relates to a measurement technology, in particular to a method for measuring the bottom contour of the longitudinal section of an inland ship. Background technique [0002] Inland river shipping has outstanding advantages such as large volume, less investment, and low cost. In the "Guiding Opinions on Accelerating the Structural Adjustment of Water Transport during the "Twelfth Five-Year Plan" Period" issued by the Ministry of Transport, the "Xingnei River" is regarded as an important part of the development of water transport during the 12th Five-Year Plan period. Among the most important, the development potential of inland waterway shipping is huge. The ever-increasing demand for inland waterway transportation has promoted the development of large-scale ships, and at the same time brought new problems and new requirements to water traffic safety management. [0003] The management of "overdraft" behavior of large ships is an important...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B17/06G01S15/08
Inventor 吴俊余葵丁甡奇李晓飚马希钦
Owner CHONGQING JIAOTONG UNIVERSITY