CN1586991A - Intelligent digital rudder angle display - Google Patents

Abstract

A marine intelligent digital display rudder angle display is composed of a transmission coupling of a ship's autopilot, an elastic coupling, a high-precision encoder, and an intelligent digital display. The transmission motor of the autopilot drives the timing belt of the coupling, and passes through Its transmission shaft drives the encoder to generate the angle signal of the ship's heading, and the angle signal is received by the intelligent digital display. After internal signal processing, it immediately displays the positive and negative angle signals of the actual navigation. The wireless communication transmitter communicates through the output of the intelligent digital display. The interface receives the angle signal and sends it to the wireless receiver in the remote cockpit to the smart digital display, so that the personnel in the remote cockpit can also see the direction and angle of the ship's navigation in due course. The invention has red LED digital positive and negative angle display functions, is easy to install, reliable in use, and has high precision, and can enable navigation commanders to grasp navigation azimuth angle signals at any time, and command and control ships to maintain correct course.

Description

Marine intelligent digital display rudder angle display

technical field

The invention relates to an intelligent digital display rudder angle display for ships, which is a device for automatically displaying the heading and azimuth angle during the working process of the ship steering system. It belongs to the field of machinery manufacturing and electronic technology.

Background technique

The ship steering system is one of the key components of ship navigation equipment, it can control the ship to keep the correct heading operation at all times. In order to ensure that the ship does not yaw, the ship steering system must be able to accurately display the heading position angle information.

The angle display of the current ship steering system usually uses a gyro compass to drive a self-aligning machine connected to a pointer dial, and the heading angle is read from the dial. When the ship's course changes, the ship's gyro follow-up system works. When the system has an angle deviation, the follow-up system drives the gyro compass dial through the sensor signal, and indicates the reading of the azimuth angle. This method of reading the ship's azimuth angle signal has always been used in the navigation industry. Although it has been continuously improved by relevant ship equipment manufacturers, it is still not ideal. For example, the inductive rudder angle indicator produced by Wenling Nautical Electric Instrument Factory adopts the principle of Wheatstone bridge, uses non-contact variable inductance as the rudder angle transmitter, and uses a mA meter as the rudder angle of the indicator. indicator, the accuracy is still difficult to distinguish. Usually, every 5 degrees of the pointer type display is a reading unit. For example, at 4 degrees, the operator needs to look closely to distinguish it, and there is a reading error. At the same time, the accuracy of the pointer angle display is not ideal enough, and it cannot indicate the value of 0.1-0.9 degrees. Some better angle indicators can generally see the dial at a distance of 1.5 meters under no lighting conditions, which is especially inconvenient to use when sailing at night.

Contents of the invention

The purpose of the present invention is to provide a marine intelligent digital display rudder angle display for the shortcomings of the existing mechanical pointer rudder angle display in real ships, which has the characteristics of simple structure, reliable performance, and can accurately display the azimuth angle of the ship in real time , and can enable the steering and command personnel to grasp the information through wireless transmission, and control the ship to maintain the correct course.

In order to achieve such a purpose, the present invention drives the synchronous belt pulley through the transmission motor of the automatic steering instrument, drives the encoder through the transmission shaft to generate the angle signal of the ship's course, receives the angle signal by the intelligent digital display, and immediately displays the actual position after internal signal processing. The positive and negative angle signals of navigation, the wireless communication transmitter receives the angle signal through the communication port of the intelligent digital display, and sends it to the wireless receiver of the remote cockpit to another intelligent digital display, so that the personnel in the remote cockpit can also The direction and angle of the ship's navigation can be seen in due course.

The marine rudder angle display of the present invention has red light-emitting diode (LED) digital positive and negative angle display functions, and the specific structure includes a synchronous pulley, a transmission shaft, an elastic coupling, a high-precision encoder, and an intelligent digital display. The transmission shaft is installed on the common seat plate through the bearing and the bearing seat, and the synchronous pulley connected with the autopilot is installed on the transmission shaft, and a screw and a washer are fastened at one end of the transmission shaft to prevent the synchronous pulley from slipping out during operation. The other end of the transmission shaft is connected to the rotating shaft of the encoder through an elastic coupling, and one end of the transition flange on the outer periphery of the elastic coupling is connected to the common seat plate, and the other end is connected to the encoder. The output control line of the encoder is connected to the intelligent digital display, and the angle value is directly displayed through the light-emitting diode on the intelligent digital display. The output communication interface of the intelligent digital display is connected to the wireless communication transmitter, and the information is transmitted to the wireless receiver in the remote computer room through the wireless antenna, and the wireless receiver set in the remote computer room is connected to the PC or the intelligent digital display in the computer room.

When working, the rotating shaft of the autopilot drives the synchronous pulley to rotate together, and the synchronous pulley drives the transmission shaft to rotate, and the transmission shaft makes the rotary shaft of the encoder rotate synchronously through the elastic coupling. Each pulse generated by the encoder running a circle represents a certain angle signal, which can be positive or negative to count the angle signal, and send the output pulse to the intelligent digital display, which is directly converted into LED after the internal A/D conversion of the intelligent digital display. Digital display, the real-time operating angle of the servo is directly displayed by the digital display. The digital display transmits to the wireless transmitter through the RS-232 communication port at the same time, and the remote wireless receiver transmits the signal to the PC (or another intelligent digital display), and other personnel can Display) can also see the real-time running rudder angle signal.

On the basis of not changing the angle display on the pointer dial of the existing steering gear (considering the habitual operation of the steering personnel), the present invention can additionally add an LED rudder angle value display function which can be clearly seen by the steering gear, especially at night When the light is dim, the command and steering personnel can clearly see the precise angle value of the navigation azimuth from a long distance. At the same time, a high-precision feedback signal is provided for the autopilot. The rudder angle display of the present invention is easy to install, reliable in use, high in precision, can display positive and negative directions in real time, can preset the azimuth angle yaw value, and will output an alarm signal when the preset bias value is reached, and can also be connected to a printer Print the heading angle curve during sailing. At the same time, the real-time digital display angle value of the intelligent digital display can also be sent to the PC or intelligent digital display in other remote cockpit through the wireless transmitter, so that the navigation command personnel can grasp the navigation azimuth angle signal at any time, and the command and control of the ship is kept correct. course.

Description of drawings

Fig. 1 is a structural schematic diagram of a marine intelligent rudder angle display of the present invention.

In the figure, 1 is a screw, 2 is a transmission shaft, 3 is a bearing, 4 is an elastic coupling, 5 is an encoder, 6 is a wireless communication transmitter, 7 is an intelligent digital display, 8 is a transition flange, and 9 is a Common seat plate, 10 is a bearing seat, 11 is a synchronous pulley, 12 is a washer, and 13 is a wireless antenna.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

The structure of the marine rudder angle display of the present invention is as shown in Figure 1, and mainly is made up of synchronous pulley 11, transmission shaft 2, elastic coupling 4, encoder 5, intelligent digital display 7. The transmission shaft 2 is installed on the common seat plate 9 through the bearing 3 and the bearing seat 10, the synchronous pulley 11 connected with the automatic steering instrument is installed on the transmission shaft 2, and a screw 1 and a washer 12 are fastened at one end of the transmission shaft 2, To prevent the synchronous pulley 11 from slipping out during operation, the other end of the transmission shaft 2 is connected to the rotating shaft of the encoder 5 through an elastic coupling 4, and one end of the transition flange 8 on the outer periphery of the elastic coupling 4 is connected to the common seat plate, and the other end Connect with encoder 5. The output control line of the encoder 5 is connected to the intelligent digital display 7 . The output communication interface of the intelligent digital display 7 is connected to the wireless communication transmitter 6, and the information is transmitted through the wireless antenna 13, and the wireless receiver in the remote computer room is connected with the PC or the intelligent digital display in the computer room.

The working process of the rudder angle display of the present invention: the operation of the automatic steering instrument drives the synchronous pulley 11 to rotate together, and the synchronous pulley 11 then drives the transmission shaft 2 to operate, and the encoder 5 rotating shaft is synchronously operated by the elastic coupling 4. The encoder 5 will generate 7200 pulses when it runs a circle, and each pulse represents an angle signal of 0.05. After A/D conversion, it is directly transformed into LED digital display, which displays the running angle of the steering gear in real time. The intelligent digital display 7 transmits the angle signal to the wireless transmitter 6 through the RS-232 communication interface at the same time. The remote wireless receiver is set in the cockpit or the command center of the ship. When the wireless receiver receives the angle signal, it will be transmitted to the PC in the command center. The captain or other command personnel can use the man-machine interface of the PC or the LED smart data The monitor can see the real-time rudder angle signal of the ship, so as to issue command orders in time and accurately, and control the ship to maintain the correct course.

In the present invention, through the digital display of the larger red LED value on the intelligent display, the operator can clearly see the angle value from 0.1-0.9 about 6 meters away from the digital display, and the accuracy of the digital display is much higher than that of the pointer type The absolute error value of the rudder angle indicator does not exceed ±0.1 degrees, and it can be matched and used for feedback with a high-precision autopilot.

The synchronous belt and transmission shaft of the coupling part in the device of the present invention can be processed locally with high precision, and the encoder, digital display and wireless data transceiver can be purchased in the market. If a PC is used for remote monitoring, the man-machine interface software can be compiled only by personnel with computer expertise, and can be compiled with the most intuitive VB high-level language. If the remote monitoring uses an intelligent digital display, the price is cheaper and no programming is required.

The present invention has been tested in the closed-loop system of the automatic steering instrument and the laboratory steering gear actuator of a national key ship professional instrument factory. It shows the advantages of high precision, convenient and clear reading value, accurate feedback signal, easy implementation, and cheap price. It is popularized and applied to various large and medium-sized ship steering systems.

Claims (2)

1, a kind of intelligent digital rudder angle display, it is characterized in that comprising synchronous pulley (11), transmission shaft (3), elasticity drive coupling (4), coder (5), intelligent digital device (7), transmission shaft (2) is by bearing (3), bearing seat (10) is installed on the public seat board (9), the synchronous pulley that links to each other with autopilot (11) is installed on the transmission shaft (2), at fastening screw of an end of transmission shaft (2) (1) and packing ring (12), the other end connects the turning cylinder of coder (5) by an elasticity drive coupling (4), counter flange (8) one ends of elasticity drive coupling (4) periphery connect public seat board, the other end is connected with coder (5), and the output control line of coder (5) is received on the intelligent digital device (7).

2, according to the intelligent digital rudder angle display of claim 1, it is characterized in that the outputting communication interface of described intelligent digital device (7) connects wireless telecommunications transmitters (6), give the wireless receiver of remote equipment room by wireless antenna (13) emission information.