Ship rudder angle feedback device and rudder angle calibration method
A technology of feedback device and calibration method, which is applied in the direction of steering with rudder, can solve problems such as failure to work, insufficient calibration accuracy, etc., and achieve the effects of high reliability, high calibration accuracy and good compatibility
Pending Publication Date: 2022-04-01
CSSC MARINE TECH CO LTD
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Problems solved by technology
The above-mentioned existing technologies all have the shortcomings of insufficient calibration accuracy and failure to work when a fault occurs
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[0037]The structural composition, working principle and implementation process of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, in order to understand the present invention more clearly, but this should not limit the protection scope of the present invention.
[0038] Such as figure 1 As shown, the present invention is firstly a ship rudder angle feedback device. The ship is provided with a steering gear. The steering gear drives the rudder blades to rotate. The rudder blades are connected to one end of a connecting rod through a parallelogram structure. When rotating, the parallelogram structure drives the connecting rod to rotate to the same angle as the actual rudder angle. It is characterized in that the rudder angle feedback device includes a connecting rod, a potentiometer, and a rudder angle acquisition and sending board. The potentiometer is connected to At the other end of the co...
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The invention relates to a ship rudder angle feedback device and a rudder angle calibration method.The rudder angle feedback device comprises a connecting rod, a potentiometer and two rudder angle collecting and sending plates, the connecting rod reflects the actual rudder angle of a ship in real time and is connected with the potentiometer, and the connecting rod drives the potentiometer to rotate to output the voltage value of the actual rudder angle in real time; the two rudder angle collecting and sending plates are used for collecting voltage values of rudder angles respectively and converting voltage values of analog signals into actual rudder angle values of digital signals, the two rudder angle collecting and sending plates are dual-redundancy hot backups for each other, and each rudder angle collecting and sending plate is provided with a CAN signal interface and a serial port signal interface at the same time; the invention further relates to a rudder angle calibration method. Calibration parameters are obtained through fitting according to the left rudder and the right rudder. According to the invention, the dual-redundancy function is realized through the two identical acquisition and sending plates, the reliability of the device is enhanced, the device is simple in structure and easy to realize, and more importantly, the rudder angle value with very high precision can be output through the calibration method provided by the invention.
Description
technical field [0001] The invention relates to the field of ship instruments and equipment, in particular to a ship rudder angle feedback device and a rudder angle calibration method. Background technique [0002] In the field of modern ship navigation, the requirements for ship control are getting higher and higher, and new course control algorithms and track control algorithms are constantly emerging, and the advantages of these control algorithms depend on accurate feedback rudder angle values. The traditional rudder angle acquisition method is transmitted in the form of current or voltage. This transmission method is susceptible to interference, poor compatibility, high cost, and the error is within ±1 degree. It cannot meet today's steering requirements, nor can it keep up with the increasing The more developed hardware technology and control algorithm. At the same time, the rudder angle value is also related to the safety of the ship's navigation. No rudder angle val...
Claims
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Inventor 何国祥陈皆潞杨子健陈杰徐海燕
Owner CSSC MARINE TECH CO LTD