Automatic control system high-speed vessel

 

(57) Abstract:

Usage: shipbuilding. The inventive system contains two groups of computers that are connected to the sensors and positions of the vessel and controlling the two groups, respectively, bow and stern rudder surfaces. From a pair of overlapping solvers one group each transmitter is connected to at least one of the solvers is similar pair to another group or to the group of two overlapping groups of sensors with formation of an independent control channel drives all the tail surfaces. 1 Il.

The invention relates to shipbuilding, in particular to the automatic control systems of high-speed vessels.

Known automatic control system high-speed vessel containing the device alignment signals that control the position of the wings [1]

This system has no means to rectify the defect in the device alignment signals. While the trend continues to grow, quickly landing a ship on the water is not only very hard, but at an angle to the surface of the water.

The known system is responsible bow and stern rudder surfaces, connected to the sensors and positions of the vessel [2] This system is chosen as the closest analogue of the invention.

The known system has a common characteristic of other similar systems flaw, which is that the vessel of the operating mode "on the wings" goes into emergency mode "on the case", though more smoothly and safely, but in any case, no matter how difficult and dangerous malfunction of the units and elements of the control system, while in some cases it would be enough just to disable the faulty part of the system to the vessel continued normally move in operational mode (as a rule, in such cases, several reduced comfort, but not the safe navigation).

The technical result of the invention is the ability to maintain the efficiency of the system control of the boat on the deep wings and in those cases, when the system failures do not cause the vessel to an emergency situation and allow you to continue driving mode "on the wings".

It is achieved by the fact that the automatic control system high-speed vessel containing two groups of evaluators drive control of sootvetstvenno the governing each other solvers one group each transmitter is connected to at least one of the solvers is similar pair to another group or to the group of two overlapping each other groups of sensors with formation of an independent control channel drives all the tail surfaces.

The drawing shows a schematic diagram of a control system that contains the computers 1, divided into two groups: group 2 control 3 aft tail surfaces of the vessel 4 and group 5 drive control 3 nasal tail surfaces 6 of the vessel. Available sensors 7 of the status and position of the ship combined into two overlapping groups 8 and 9 and are used to determine, for example, the position of the steering wheel angular position of the vessel, its angular velocity, overload and so on

For clarity of description conditionally assign the four solvers 1 name: "nasal" ("n) ("fodder" ("), Left ("l"), "right" ("p").

As can be seen from the drawing, each pair of overlapping solvers one group, for example, group 2, each transmitter, for example, the transmitter 1 "l to" connected, at least the bus "And" one evaluator 1 "L. N." from similar groups of 5, with both transmitter 1 "L. K." and 1 "L. N." connected to the appropriate group 8 sensors 7 and 10 remote indication and control of the vessel.

At the same time with some well-known complication of the system controls the transmitter 1 "L. K." can be connected to the transmitter 1 "p. H." bus "B" (similar to calculators 1 "p. is.to. 1 L. N. 6, and another channel: 4 1 SC 2 p. N. 6 managing all steering surfaces of the vessel.

At the same time due to the cross-ties "B", the two channels may have a different configuration 4 1 K. L. 1 p. N. 6 and 4 respectively 1 SC 1 L. N. -6.

From the drawing it is seen that at any reconfiguration system of any of the selected channels will be connected to the sensors 7 and 10 remote indication and control of the vessel.

The system works as follows.

The mode control vessel (system) is set from the remote control 10 appropriate, the command containing the set values of the control parameters, at the same time all solvers 1 of the 3 drives in the system. In turn, the evaluators 1 send in the remote control to display information about movement parameters of the vessel, the position of the tail surfaces, as well as information about the state of the control system, each of the computers 1 generates the control laws for all drives 3 feed 4 and the nose 6 groups of tail surfaces. However, it is known that the signals on the control issued by the solvers are low and can ensure a stable operation of the actuators remote from calculators at a slight distance the e reliability. Since in practice the bow and stern drives can be removed from each other to a distance of a hundred meters or more, it really drives the aft tail surfaces 4 can only manage remotely close to them fodder solvers from group 2, and 6 nasal group only 5.

Each control channel the results of the calculations of one transmitter (e.g., forage) are transferred to another computer (respectively nasal) and compare match (mismatch results are fault). This comparison can be made or apparatus known means, or at the software level.

In the absence of failures (fault) drive control 3 tail surfaces 4 and 6 of the vessel is underway on the two-channel scheme through both inputs of each of the actuator 3, with the addition of control inputs from both channels occurs directly on the windings of the control, which is part of the well-known actuators 3.

With long-term discrepancy between the results of calculations, it is concluded that the failure (failure) in one of the control channels, and generates the command to disable the faulty channel from the relevant exchange rate is and continues to go through another healthy control channel provided on all system modes of motion of the ship, though perhaps with somewhat degraded performance but still a safe navigation. Specifying the duration of the different calculations used by the fault of one of the channels is set for each particular vessel, depending on its dynamic characteristics, and the procedure for determining the specific faulty channel of the two drops will be clear from the further description.

Upon detection of a failure at the same time in both channels driven or forced landing ship EN water for vessels with deep wings, or Suleymaniye and a jammed rudder surfaces for vessels with partially submerged wings.

The fundamental essence of the operation of this system is as follows.

As the most critical link in any system of automatic control of the transmitter is most exposed and failures in comparison with other parts of the control, because of security required, especially for vessels with deep wings, are not allowed control of the ship from one transmitter without duplication. Given sloanie, requires installation of at least two overlapping solvers for each group of tail surfaces (actuators), respectively stern and bow. However, the mere duplication may not lead to the desired result, since failure in one of the two solvers controls are not able to determine which of them has failed. Therefore, the known method of increasing reliability of the system is to install at the same time three computers, two of which, issuing the same information, the control means can detect a bad third, information which differs from the first two, and he controls is disconnected from the control.

Therefore, if we accept the traditional way of solving the problem, in the control system of the vessel should be set three forage and three nasal transmitter, i.e. a total of six, respectively, by providing the system with additional subsystems.

Due to the significant complexity and a corresponding drop in the fail-safe system this solution in practice.

The advantages of this system compared with the known clearly disclosed in the following example of its work is nasal, their testimony would be inconsistent. However, only the difference in readings of well-known means of control cannot determine which of the two solvers, 1 "L. N." or 1 "p. N. defective. But in this system failed left nasal evaluator information is associated not only with my backup right nose, but, for example, the width "A" with the left aft. Hence: controls by matching information from the computers 1 "p. N." and 1 "L. K." will determine which of the two overlapping solvers group 5 faulty it is the evaluator 1 "L. N.", will disable all channel control 4 1 "L. K." 1 "L. N." 6 and the vessel will continue in operational mode "on the wings", coping with channel 4 1 "SC" 1 "p. N." 6.

The presence of cross-connections "B" between the computers 1 further increases the fail safe control system as similar to the above described comparison information from the computers 1 becomes apparent that the system allows to operate the vessel in the "wings" even when two simultaneously failed solvers any one nose and one any fodder.

Moreover, if in the first case (when ties "And" between computers) together with a disabled channel, for example, channel "B") information on the status and position of the vessel continues to do for the remainder included a control channel from both groups 8 and 9 of the sensors 7, which greatly increases the survivability of the system.

It should also be noted that the failure of individual sensors 7 are not essential for the survivability of the system, because in addition to duplicating the same information about the state and position of the vessel arrives from sensors of different physical nature. For example, the angular position of the vessel can be determined not only by the angular position sensor, but the sensor of angular velocity.

Automatic control system high-speed vessel containing two groups of evaluators, management, each of which contains a pair of redundant processors and associated actuators, respectively, bow and stern rudder surfaces, connected to redundant sensors and positions of the vessel, wherein the pair of overlapping solvers one group each transmitter is connected to at least one of the solvers is similar pair to another group or to the group of two overlapping groups of sensors with formation of an independent control channel drives all the tail surfaces.

 

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