CN104648613A - Ship model maneuverability test device based on laser guide technology - Google Patents

Abstract

The invention provides a ship model maneuverability test device based on laser guidance technology, which includes a high platform installed above the pool, a laser guidance platform installed on the high platform, a ship model, and a ship model installed on the head end and tail end. Two laser receivers and a data processing system installed inside the ship model, the laser guidance platform includes a bracket, three motors, two lasers, two steering gear, the ship model laser receiver includes a laser sensor, a sensor Mounting plate, sensor base, the laser receiver is installed in the bow and stern, the data processing system includes a master controller, a data collector and a memory connected to the master controller, each laser receiver is connected to the master through wires respectively Controller connection. The invention has the advantages of simple structure, convenient operation, stable movement and strong adaptability, and is suitable for maneuverability tests of various ship models.

Description

A ship model maneuverability test device based on laser guidance technology

technical field

The invention relates to a ship model maneuverability test device, in particular to a ship model maneuverability test device based on laser guidance technology.

Background technique

Ship maneuverability is one of the important performances of a ship. Once a ship loses its maneuverability, the navigation will lack the minimum safety guarantee. Especially when the ship encounters extreme weather, the sea conditions will become very bad, and the ship's operational performance will face a huge test. Once the ship's maneuverability is reduced, it will have a huge impact on the safety of the ship. Therefore, it is of great significance to study the maneuverability of ships. However, due to the late start of the research on ship maneuverability, for a long time, ship maneuverability has been basically limited to the ability of the ship to maintain and change its course under the control of the steering device. The methods used are also mainly Maneuverability test research is carried out through the self-propelled model. However, due to the limitation of the scale of the tank, only a simple constraint ship model test can often be carried out.

At present, the ship maneuvering test technology mainly adopts the restrained ship model test and the pure self-propulsion test technology, the test equipment is relatively complicated, and the test site requirements are high. During the test, the trajectory of the ship model cannot be precisely controlled, and the precise measurement of the speed is also a bottleneck that plagues the further development of the self-propelled maneuvering test. The ship model manipulation test device using laser-guided technology uses the rotation speed and angle of the platform to control the laser rotation and then guides the ship model movement, thus solving the problem of speed measurement and measurement of the radius of gyration; the rudder angle and propeller speed data obtained at the same time, together with the previous The set speed and radius of gyration constitute the main parameters of the hydrodynamic analysis of the ship's maneuverability, thereby establishing a new ship model maneuvering test system.

Contents of the invention

The object of the present invention is to provide a ship model maneuverability test device based on laser guidance technology with simple structure and good stability in order to solve the problems of speed measurement and track measurement in maneuverability test.

The purpose of the present invention is achieved in that it comprises a high platform installed above the pool, a laser guiding platform installed on the high platform, a ship model, two laser receivers installed on the bow and tail of the ship model, and a laser receiver installed on the ship model The internal data processing system, the laser guiding platform includes a bracket installed on the high platform, a first motor installed on the bracket, a rotating platform connected to the output end of the first motor, and a second motor installed on the rotating platform and the third motor, the first steering gear installation platform and the second steering gear installation platform connected to the output ends of the second motor and the third motor respectively, and the first steering gear installation platform and the second steering gear installation platform respectively The first steering gear and the second steering gear, the first steering gear pan-tilt and the second steering gear pan-tilt respectively installed on the first steering gear and the second steering gear, and the first steering gear pan-tilt and the second steering gear respectively installed on the first steering gear pan-tilt and the second steering gear The first laser and the second laser on the machine platform, each of the laser receivers includes a sensor base installed on the ship model, a mounting plate installed on the sensor base and a laser mounted on the mounting plate There are at least ten laser sensors and they are evenly arranged on the mounting board. The data processing system includes a main controller, a data collector and a memory connected to the main controller, and each laser receiver is connected to the main controller through wires respectively. Controller connection.

The present invention also includes such structural features:

1. The two sensor bases are respectively installed at the junction of the longitudinal section of the ship and the deck, and the distance between the two sensor bases is 0.75 ship length.

Compared with the prior art, the beneficial effects of the present invention are: the present invention is based on the laser guidance technology, which basically solves the problems of speed measurement and track measurement in the maneuverability test, and the present invention has the advantages of simple structure, convenient manufacture and operation, and stable With the advantages of good performance, easy control, high motion precision and low energy consumption, it can guide different ship models to conduct operability experiments under different sea conditions, especially in the gyration experiments, complete speed measurement and trajectory measurement, and simultaneously feed back real-time rudder angle, Information such as propeller speed is used for test analysis and has good practical and market value.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the structural representation of the laser guide platform of the present invention;

Fig. 3 is a partial structural schematic diagram of the laser sensor of the present invention;

Fig. 4 is a schematic diagram of the automatic steering control system of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

1 to 4, the present invention includes a high platform 17 installed above the pool, a laser guide platform 1 installed on the high platform 17, a ship model 23, two laser receivers installed on the head end and tail end of the ship model 23 8, 9 and the data processing system installed inside the ship model 23, the laser guidance platform 1 includes a bracket 4 installed on the high platform, a first motor 3 installed on the bracket 4, and an output end of the first motor 3 The connected rotary platform 2, the second motor 5-1 and the third motor 5-2 installed on the rotary platform 2, the first steering gear connected with the output ends of the second motor 5-1 and the third motor 5-2 respectively The installation platform 21-1 and the second steering gear installation platform 21-2, the first steering gear 6-1 and the second steering gear installation platform 21-1 installed on the first steering gear installation platform 21-2 and the second steering gear installation platform 21-2 respectively. Steering gear 6-2, the first steering gear pan-tilt 7-1 and the second steering gear pan-tilt 7-2 installed on the first steering gear 6-1 and the second steering gear 6-2 respectively and installed on the The first laser device 22-1 and the second laser device 22-2 on the first steering gear platform 7-1 and the second steering gear platform 7-2, the first motor 3 controls the motion of the whole rotary platform 2, and the second motor 5-1 and the third motor 5-3 can make the two steering gear pan-tilts rotate in the horizontal plane, and the first laser 22-1 and the second laser 22-2 can rotate around their corresponding steering gears 6-1 and 6 -2 do pitch rotation; each of the laser receivers 8 and 9 includes the sensor base 18 installed on the ship model 23, the mounting plate 20 installed on the sensor base 18 and the mounting plate 20 installed on the Laser sensor 19, described laser sensor 19 has at least ten and is evenly arranged on the mounting board 20, and described data processing system comprises master controller 11, and the data collector 13 that is connected with master controller 11 and memory 14, each The laser receivers 8 and 9 are respectively connected with the main controller 11 by wires. The main controller 11 calculates and outputs the rudder angle and propeller speed according to the control in real time through the detected laser path, and the data collector 13 collects the information of the speed and rudder angle in real time and stores them in the memory 14 . Two sensor bases are respectively installed at the junction of the longitudinal section of the ship and the deck, and the distance between the two sensor bases is 0.75 ship length.

The ship model 23 of the present invention is a self-propelled ship model, and the ship model 23 has a power system and a heading control system. Wherein, the power system includes a motor drive block 12, a motor, a transmission shaft and a propeller; the heading control system includes a steering gear drive module 10, a steering gear, and a rudder, and the main controller 11 provides the power system and the heading control system with Control signals, as shown in FIG. 4 : the main controller 11 of the present invention controls the motor drive module 12 and the steering gear drive module 10 . The laser guide platform 1 of the present invention is fixed at a certain height on the pool, and can rotate at a certain angle at a certain angular speed according to the requirements of the ground station, and emits two laser beams 16. The emitted laser beams are infrared lasers with a line width of 0.33mm; Said laser receivers 8 and 9 are respectively installed on the head and tail of the ship model 23, which receive laser signals; The rudder angle and the propeller propulsion motor speed realize the guidance of the laser to the movement of the ship model 23, and the ship model 23 can carry out maneuverability experiments according to the experimental design.

Claims (2)

1. A ship model maneuverability test device based on laser guidance technology, characterized in that: it includes a high platform installed above the pool, a laser guidance platform installed on the high platform, a ship model, and a ship model installed on the head end and tail end Two laser receivers and a data processing system installed inside the ship model, the laser guidance platform includes a bracket installed on a high platform, a first motor installed on the bracket, a rotary motor connected to the output end of the first motor The platform, the second motor and the third motor installed on the rotating platform, the first steering gear installation platform and the second steering gear installation platform connected to the output ends of the second motor and the third motor respectively, are respectively installed on the first steering gear The first steering gear and the second steering gear on the installation platform and the second steering gear installation platform, the first steering gear pan-tilt and the second steering gear pan-tilt installed on the first steering gear and the second steering gear respectively, and the The first laser and the second laser on the first steering gear platform and the second steering gear platform, each of the laser receivers includes a sensor base installed on the ship model, and is installed on the sensor base The mounting plate and the laser sensor installed on the mounting plate, the laser sensors are at least ten and evenly arranged on the mounting plate, the data processing system includes a main controller, a data collector and a memory connected to the main controller , each laser receiver is connected with the main controller through wires respectively. 2. A kind of ship model maneuverability test device based on laser-guided technology according to claim 1, characterized in that: two sensor bases are respectively installed at the junction of the midship longitudinal section and the deck, and the two sensor bases The distance between them is 0.75 ship lengths.