A method and system for heavy load interrogation control of a ship's pressurized discharge arrangement

Abstract

The present application relates to a kind of ship press load device heavy load inquiry control method and system, system includes system comprehensive control device, signal sub-control box, press load device control box, power station monitoring system, connection is carried out by communication cable, wherein press load device control box possibly has one or more, realize press load device remote control and on-site control, improve the vitality of control system.Control method includes remote control method and on-site control method, and the degree of automatic control of heavy load inquiry before the start of press load device can be improved by the method and system, speed up the response speed of press load device start, improve the convenience of operation and ship submergence operation efficiency.The problem of how to improve the efficiency of ship submergence operation of large ship or special ship with high demand for ship attitude adjustment is solved, the vitality of press load device control system is improved;Reduce the operation steps of crew, improve the degree of automatic control, improve the convenience of operation and ship submergence operation efficiency.

Description

Technical Field

[0001] This invention relates to a monitoring and control technology for a ship's buoyancy and attitude balance system, applicable to the design of a ship's buoyancy and attitude balance system or ballast system, and particularly to a heavy-load query control method and system for a ship's ballast device. Background Technology

[0002] According to relevant standards and regulations, before a ship puts a high-power load device into use, a heavy load inquiry should be conducted first, and the device can only be put into use after obtaining permission from the power station monitoring system. This is to ensure that the ship's power grid operating power meets the usage requirements and to avoid power outages, short circuits, and other faults in the ship's power grid caused by directly turning on the high-power load device.

[0003] For large ships or special vessels with high requirements for attitude adjustment, there are high demands on operation time and efficiency. Ballast removal devices are key equipment in the buoyancy and attitude balance system, generally including high-power equipment such as large-displacement ballast pumps and large-displacement ballast air compressors. However, high-power ballast removal devices require a heavy load inquiry process before startup, which prolongs the buoyancy operation time and reduces the response speed of the buoyancy and attitude balance system. To ensure that the ballast removal device can be quickly put into use when the ship needs to be buoyed, the automation and intelligence of its heavy load inquiry control method and system are of great significance for ensuring the achievement of buoyancy operation time targets and improving the efficiency of ship buoyancy operations. Summary of the Invention

[0004] For large ships or special vessels with high requirements for attitude adjustment, this invention proposes a heavy-load inquiry control method and system for ship ballast discharge devices to ensure rapid deployment of the device when needed for buoyancy operations, guarantee the achievement of buoyancy operation time targets, and improve the efficiency of ship buoyancy operations. The system mainly includes a system integrated control device, a signal sub-control box, a ballast discharge device control box, and a power station monitoring system, all connected via communication cables. There may be one or more ballast discharge device control boxes, enabling remote and local control of the ballast discharge device and improving the system's survivability. The control methods include remote control and local control. This method and system can improve the degree of automatic control of heavy-load inquiry before the ballast discharge device starts, accelerate the start-up response speed of the ballast discharge device, and improve operational convenience and the efficiency of ship buoyancy operations.

[0005] The technical solution of this invention is as follows:

[0006] A ship ballast discharge device heavy load inquiry control system includes a system integrated control unit, a signal sub-control box, a ballast discharge device control box, and a power station monitoring system. The system integrated control unit is a remote control terminal for the ballast discharge device, equipped with soft / hard operation buttons for <Remote Control>, <Heavy Load Inquiry>, <Heavy Load Permit>, <Start>, and <Stop / Cancel>, as well as status indicators, and is directly connected to the signal sub-control box via communication cables. The signal sub-control box is directly connected to both the system integrated control unit and the ballast discharge device control box via communication cables. The ballast discharge device control box is a local control terminal for the ballast discharge device, equipped with soft / hard operation buttons for <Local / Remote Control>, <Heavy Load Inquiry>, <Heavy Load Permit>, <Start>, and <Stop / Cancel>, as well as status indicators, and is directly connected to both the signal sub-control box and the power station monitoring system via communication cables. The power station monitoring system is a ship's power grid management terminal, equipped with soft / hard operation buttons for <Heavy Load Inquiry> and <Heavy Load Permit>, as well as status indicators, and is directly connected to the ballast discharge device control box via communication cables.

[0007] The ballast displacer control box continuously sends a "remote control status indication" hold signal to the system integrated control device; when in remote control mode, the ballast displacer control box and the system integrated control device's "remote control" indicator are always lit; when in local control mode, the system integrated control device's "remote control" indicator is not lit.

[0008] The ballast and load shedding device control box continuously sends an "operating status" hold signal to the system integrated control device and the power plant monitoring system; when the ballast and load shedding device is in the operating state, the <start> indicator of the system integrated control device and the ballast and load shedding device control box is always lit; when the ballast and load shedding device is in the stopped state, the <start> indicator of the system integrated control device and the ballast and load shedding device control box is not lit.

[0009] The <Stop / Cancel> button and status indicator are used to stop the ballast and load distribution device when it is in operation. When the ballast and load distribution device is stopped, the <Stop / Cancel> button and status indicator on the operating system integrated control device or the ballast and load distribution device control box will stop sending the "Heavy Load Inquiry" hold signal, and the signal will be reset.

[0010] Furthermore, communication cables can generally adopt serial, parallel, Ethernet, or digital / analog communication methods.

[0011] Furthermore, on the integrated system control device, the <Heavy Load Inquiry>, <Start>, and <Stop / Cancel> buttons should also have status indication functions, while <Remote Control> and <Heavy Load Allow> should only have status indication functions; on the load shedding device control box, the <Local / Remote Control>, <Heavy Load Inquiry>, <Start>, and <Stop / Cancel> buttons should also have status indication functions, while <Heavy Load Allow> should only have status indication functions; on the power plant monitoring system, the <Heavy Load Inquiry> button should only have status indication functions, while the <Heavy Load Allow> button should also have status indication functions.

[0012] Furthermore, the integrated system control device, signal sub-control box, and power plant monitoring system are considered as one unit, while there can be multiple ballast and load shedding device control boxes. When there are multiple ballast and load shedding device control boxes, the integrated system control device should have multiple sets of <local / remote>, <overload inquiry>, <start>, and <stop / cancel> buttons and status indicators, and the power plant monitoring system should have multiple sets of <overload allow> buttons.

[0013] A method for controlling the overload inquiry of a ship's ballast discharge device, used in the aforementioned ship's ballast discharge device overload inquiry control system, is a remote control method, comprising the following steps:

[0014] S1.1 The crew member presses the <Heavy Load Inquiry> button on the integrated system control device; at this time, the integrated system control device sends a "Heavy Load Inquiry" hold signal to the signal sub-control box; the signal sub-control box sends the hold signal to the ballast and load shedding device control box, causing the <Heavy Load Inquiry> indicator on the ballast and load shedding device control box to remain lit; the ballast and load shedding device control box sends a "Received" hold signal back, which is finally transmitted to the integrated system control device via the signal sub-control box, causing the <Heavy Load Inquiry> indicator on the integrated system control device to remain lit, and at the same time, the ballast and load shedding device control box sends a "Heavy Load Inquiry" hold signal to the power plant monitoring system;

[0015] S1.2 After receiving the "Heavy Load Inquiry" hold signal, the power station monitoring system analyzes whether the ballast discharge device can be started based on the current power consumption of the ship's power grid. If the starting conditions are not met, the crew operates the <Stop / Cancel> button on the integrated system control device to stop sending the "Heavy Load Inquiry" hold signal and reset it. That is, the <Heavy Load Inquiry> indication on the integrated system control device and the ballast discharge device control box is canceled, and the process ends. If the starting conditions are met, the crew operates the power station monitoring system to send a "Heavy Load Permit" hold signal to the ballast discharge device control box, making the <Heavy Load Permit> indication on the ballast discharge device control box constantly lit. At the same time, the ballast discharge device control box sends a "Heavy Load Permit" hold signal to the signal sub-control box, and then the signal sub-control box sends a "Heavy Load Permit" hold signal to the integrated system control device, making the <Heavy Load Permit> indication on the integrated system control device constantly lit.

[0016] S1.3 When the <Heavy Load Permit> indicator on the system integrated control device is constantly lit, the crew member presses the <Start> button on the integrated control device of the operating system. The system integrated control device sends a "Start" instantaneous signal to the signal sub-control box and simultaneously stops sending the "Heavy Load Inquiry" hold signal. At this time, the "Heavy Load Inquiry" hold signal is reset. The signal sub-control box sends a "Start" instantaneous signal to the ballast and ballast device control box, causing the ballast and ballast device control box to execute the command to start the ballast and ballast device. After successful start, the <Start> indicator on the ballast and ballast device control box is constantly lit. Since the system integrated control device and the power plant monitoring system continuously receive the "Operating Status" hold signal from the ballast and ballast device control box through the signal sub-control box, the <Start> indicator on the system integrated control device is constantly lit at this time, and the power plant monitoring system stops sending the "Heavy Load Permit" hold signal. The "Heavy Load Permit" hold signal is reset.

[0017] S1.4 After the vessel's sinking and floating operations are completed, the crew presses the <Stop / Cancel> button on the integrated control device of the operating system. The integrated control device sends a "Stop" instantaneous signal to the signal sub-control box, which in turn sends a "Stop" instantaneous signal to the ballast and ballast removal device control box. The ballast and ballast removal device control box executes the command to stop the ballast and ballast removal device. After a successful stop, the <Start> indication on the ballast and ballast removal device control box is canceled. Since the integrated control device and the power station monitoring system continuously receive the "Operating Status" hold signal from the ballast and ballast removal device control box through the signal sub-control box, the <Start> indication on the integrated control device is canceled at this time.

[0018] A method for controlling the overload query of a ship's ballast discharge device, used in the aforementioned overload query control system for the ship's ballast discharge device, is a local control method. The specific steps of the local control method are as follows:

[0019] S2.1 The crew member operates the <Heavy Load Inquiry> button on the ballast discharge device control box to keep the <Heavy Load Inquiry> indicator constantly lit, and at the same time sends a "Heavy Load Inquiry" hold signal to the signal sub-control box and the power station monitoring system; the signal sub-control box sends a "Heavy Load Inquiry" hold signal to the system integrated control device to keep the <Heavy Load Inquiry> indicator constantly lit on the system integrated control device;

[0020] S2.2 After receiving the "Heavy Load Inquiry" hold signal, the power station monitoring system analyzes whether the ballast discharge device can be started based on the current power consumption of the ship's power grid. If the starting conditions are not met, the crew member presses the <Stop / Cancel> button on the ballast discharge device control box to stop sending the "Heavy Load Inquiry" hold signal. This signal is reset, meaning the <Heavy Load Inquiry> indication on the system integrated control device and the ballast discharge device control box is canceled, and the process ends. If the starting conditions are met, the crew member operates the power station monitoring system to send a "Heavy Load Permit" hold signal to the ballast discharge device control box, making the <Heavy Load Permit> indicator on the ballast discharge device control box constantly lit. At the same time, the ballast discharge device control box sends a "Heavy Load Permit" hold signal to the signal sub-control box, and the signal sub-control box sends a "Heavy Load Permit" hold signal to the system integrated control device, making the <Heavy Load Permit> indicator on the system integrated control device constantly lit.

[0021] S2.3 When the <Heavy Load Permit> indicator on the ballast and ballast device control box is constantly lit, the crew member operates the <Start> button on the ballast and ballast device control box. The ballast and ballast device control box stops sending the "Heavy Load Inquiry" hold signal, and the "Heavy Load Inquiry" hold signal is reset. At the same time, the command to start the ballast and ballast device is executed. After successful start, the <Start> indicator on the ballast and ballast device control box remains constantly lit. Since the system integrated control device and the power plant monitoring system continuously receive the "Operating Status" hold signal from the ballast and ballast device control box through the signal sub-control box, the <Start> indicator on the system integrated control device remains constantly lit at this time. At the same time, the power plant monitoring system stops sending the "Heavy Load Permit" hold signal, and the "Heavy Load Permit" hold signal is reset.

[0022] S2.4 After the ship's sinking and floating operations are completed, the crew operates the <Stop / Cancel> button on the ballast and ballast device control box. The ballast and ballast device control box executes the command to stop the ballast and ballast device. After the stop is successful, the <Start> indication on the ballast and ballast device control box is canceled. Since the system integrated control device and the power station monitoring system continuously receive the "Operating Status" hold signal from the ballast and ballast device control box through the signal sub-control box, the <Start> indication on the system integrated control device is canceled at this time.

[0023] Furthermore, in the remote control method, except for the control of the system integrated control device's <Heavy Load Inquiry>, <Stop / Cancel>, and <Start> and the power plant monitoring system's <Heavy Load Permit> which require crew operation, all other operations are automatic control processes.

[0024] Furthermore, in the local control method, except for the control of the <Heavy Load Inquiry>, <Stop / Cancel>, and <Start> of the ballast discharge device control box and the <Heavy Load Permit> of the power plant monitoring system, which require crew operation, all other operations are automatic control processes.

[0025] Furthermore, the "Overload Inquiry", "Overload Allow", and "Running Status" signals are hold signals; the "Start" and "Stop / Cancel" signals are momentary signals; the "Overload Inquiry" or "Overload Allow" hold signal reset means that when the "Overload Inquiry" or "Overload Allow" hold signal stops sending, the corresponding constantly lit indicator part will automatically cancel the indication.

[0026] Furthermore, the buttons and status indicators of the integrated system control device, the ballast and load shedding device control box, and the power plant monitoring system are all for a specific ballast and load shedding device; the control methods for different ballast and load shedding devices are the same.

[0027] The beneficial effects of this invention are as follows:

[0028] A multi-level heavy-load query control system for ship ballast and ballast discharge devices is proposed. The integrated control device and the ballast and ballast discharge device control box are respectively the remote control terminal and the local control terminal of the ballast and ballast discharge device, which enhances the survivability of the ballast and ballast discharge device control system. The ballast and ballast discharge device control box interacts with the power station monitoring system to ensure the safe and reliable operation of the ship's power grid, and provides ideas for the control design of ship buoyancy and attitude balance system.

[0029] A method for heavy load inquiry control of ship ballast discharge device is proposed. Based on this method, control process and control strategy can be designed, reducing crew operation steps, improving the degree of automatic control of the heavy load inquiry control process of ballast discharge device, and improving the convenience of operation and the efficiency of ship sinking and floating operations. Attached Figure Description

[0030] Figure 1 This is a diagram of the heavy load inquiry control system for the ship ballast discharge device of the present invention;

[0031] Figure 2 This is a diagram showing the layout of the buttons and status indicators of the integrated alarm device of the present invention.

[0032] Figure 3-1 This is a schematic diagram of the heavy load query remote control method for the ship ballast discharge device of the present invention.

[0033] Figure 3-2 This is a flowchart of the heavy load query remote control method for the ship ballast discharge device of the present invention;

[0034] Figure 4-1 This is a schematic diagram of the local control method for heavy load inquiry of the ship ballast discharge device of the present invention.

[0035] Figure 4-2 This is a flowchart of the local control method for heavy load inquiry of the ship ballast discharge device according to the present invention. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0037] This invention provides a heavy load inquiry control system for ship ballast discharge devices. Please refer to [link / reference]. Figure 1 , Figure 2 It mainly includes a system integrated control device, a signal sub-control box, a ballast and load shedding device control box, and a power plant monitoring system. Among them, the system integrated control device, the signal sub-control box, and the power plant monitoring system are one unit, while the ballast and load shedding device control box can be one or more units. In this embodiment, the ballast and load shedding device control box includes Ballast and Load Shedding Device Control Box No. 1 and Ballast and Load Shedding Device Control Box No. 2.

[0038] More specifically, the system integrated control device is the remote control terminal for load shedding devices No. 1 and No. 2. It is equipped with soft / hard operation buttons and status indicators for load shedding devices No. 1 and No. 2, such as <Remote Control>, <Heavy Load Inquiry>, <Heavy Load Allow>, <Start>, and <Stop / Cancel>. It is directly connected to the signal sub-control box via communication cables. The signal sub-control box is directly connected to the system integrated control device, the control box of load shedding device No. 1, and the control box of load shedding device No. 2 via communication cables. The control boxes of load shedding devices No. 1 and No. 2 are controlled by... The control box serves as the local control terminal for the ballast discharge device, equipped with soft / hard operation buttons and status indicators such as <Local / Remote>, <Heavy Load Inquiry>, <Heavy Load Allow>, <Start>, and <Stop / Cancel>. It is directly connected to the signal sub-control box and the power station monitoring system via communication cables. The power station monitoring system is the ship's power grid management terminal, equipped with soft / hard operation buttons and status indicators such as <Heavy Load Inquiry> and <Heavy Load Allow> for ballast discharge devices 1 and 2 respectively. It is directly connected to the control boxes of ballast discharge devices 1 and 2 via communication cables.

[0039] More specifically, communication cables can generally use, but are not limited to, serial, parallel, Ethernet, digital / analog, and other communication methods.

[0040] More specifically, the <Heavy Load Inquiry>, <Start>, and <Stop / Cancel> buttons on the system's integrated control device should also have status indication functions, while <Remote Control> and <Heavy Load Allow> should only have status indication functions. On the control boxes of ballast pumping units No. 1 and No. 2, the <Local / Remote Control>, <Heavy Load Inquiry>, <Start>, and <Stop / Cancel> buttons should also have status indication functions, while <Heavy Load Allow> should only have status indication functions. On the power plant monitoring system, the <Heavy Load Inquiry> button should only have status indication functions, while the <Heavy Load Allow> button should also have status indication functions.

[0041] More specifically, the control boxes of Ballast Displacement Unit 1 and Ballast Displacement Unit 2 continuously send a "remote control status indication" hold signal to the system integrated control unit through the signal sub-control box. When in remote control mode, the <remote control> indicator on the Ballast Displacement Unit control box and the system integrated control unit is constantly lit; when in local control mode, the <remote control> indicator on the system integrated control unit is not lit.

[0042] This invention also proposes a remote control method for heavy-load querying of a ship's ballast discharge device; please refer to [link to relevant documentation]. Figures 3-1 to 3-2 This embodiment utilizes a heavy-load inquiry control system for ship ballast removal devices. Ballast removal device No. 1 is used as the controlled object; the control method is the same for different ballast removal devices. The remote control steps include:

[0043] S101: The crew member presses the "Heavy Load Inquiry" button on the No. 1 ballast discharge device on the integrated system control unit;

[0044] S102: The system integrated control device sends a "heavy load inquiry" hold signal from the No. 1 load shedding device to the signal sub-control box;

[0045] S103: The signal control box sends a "heavy load inquiry" hold signal from the No. 1 ballast and load distribution device to the No. 1 ballast and load distribution device control box, so that the "heavy load inquiry" indicator on the No. 1 ballast and load distribution device control box is constantly lit.

[0046] S104: The No. 1 ballast release device control box sends a "received" hold signal to the signal sub-control box;

[0047] S105: The signal control box sends a "received" hold signal from the No. 1 load shedding device to the system integrated control device, causing the No. 1 load shedding device's <heavy load inquiry> indicator on the system integrated control device to remain constantly lit.

[0048] S106: The No. 1 ballast release device control box sends a "heavy load inquiry" hold signal to the power plant monitoring system;

[0049] Based on the current power supply status of the ship's electrical grid, analyze whether it is permissible to start the No. 1 ballast release device. If the starting conditions are not met, then proceed as follows:

[0050] S117: The <Stop / Cancel> button on the No. 1 ballast and ballast device of the crew operating system integrated control device stops the system integrated control device from sending the "Heavy Load Inquiry" hold signal of the No. 1 ballast and ballast device, and resets the "Heavy Load Inquiry" hold signal.

[0051] The process is complete.

[0052] If the startup conditions are met, then execute:

[0053] S107: Crew members are operating the No. 1 ballast release device <heavy load permitted> on the power plant monitoring system;

[0054] S108: The power plant monitoring system sends a "heavy load permitted" hold signal to the No. 1 ballast and ballast device control box, so that the "heavy load permitted" indicator on the No. 1 ballast and ballast device control box is constantly lit.

[0055] S109: The No. 1 ballast release device control box sends a "heavy load permitted" hold signal to the signal sub-control box;

[0056] S110: The signal control box sends a "heavy load permission" hold signal to the system integrated control device, so that the "heavy load permission" indicator of the No. 1 load shedding device on the system integrated control device is constantly lit;

[0057] S111: Start button for Ballast Displacement Device No. 1 on the crew operating system integrated control unit;

[0058] S112: The system integrated control device sends the "start" instantaneous signal of the No. 1 load shedding device to the signal sub-control box, and at the same time stops sending the "heavy load inquiry" holding signal of the No. 1 load shedding device. At this time, the "heavy load inquiry" holding signal is reset.

[0059] S113: The signal control box sends a "start" instantaneous signal to the No. 1 ballast and load shedding device control box, causing the No. 1 ballast and load shedding device control box to execute the command to start the No. 1 ballast and load shedding device. After successful execution, the <start> indicator on the No. 1 ballast and load shedding device control box will remain lit.

[0060] S114: The control box of the No. 1 ballast release device sends an "operating status" hold signal to the signal sub-control box;

[0061] S115: The No. 1 ballast and ballast device control box sends an "operating status" hold signal to the power plant monitoring system, causing the power plant monitoring system to stop sending the No. 1 ballast and ballast device "heavy load permitted" hold signal, and the "heavy load permitted" hold signal is reset.

[0062] S116: The signal control box sends the "operating status" hold signal of the No. 1 ballast evacuation device to the system integrated control device, so that the No. 1 ballast evacuation device <start> indicator of the system integrated control device is constantly lit.

[0063] Once the ship's sinking and floating operation is completed, the operation will continue:

[0064] S117: Stop / Cancel button for Ballast Displacement Device No. 1 on the Crew Operating System Integrated Control Unit;

[0065] S118: The system integrated control device sends a "stop" instantaneous signal to the signal sub-control box for the No. 1 ballast release device;

[0066] S119: The signal control box sends a "stop" instantaneous signal to the No. 1 ballast and load shedding device control box. The No. 1 ballast and load shedding device control box executes the command to stop the No. 1 ballast and load shedding device, and the <start> indication of the No. 1 ballast and load shedding device control box is canceled.

[0067] S114: The control box of the No. 1 ballast release device sends an "operating status" hold signal to the signal sub-control box;

[0068] S116: The signal control box sends the "operating status" hold signal of the No. 1 ballast evacuation device to the system integrated control device, so that the No. 1 ballast evacuation device <start> indication of the system integrated control device is cancelled;

[0069] The process is complete.

[0070] More specifically, steps S101, S107, S111, and S117 require crew operation, while the other steps are all automated control procedures.

[0071] This invention also proposes a method for local control of heavy load inquiries in ship ballast discharge devices; please refer to [link to relevant documentation]. Figures 4-1 to 4-2 The ship's ballast discharge system heavy load interrogation control system is used, with Ballast Discharge Unit 1 as the controlled object. The control method is the same for all ballast discharge units. The local control steps include:

[0072] S201: The crew member presses the <Heavy Load Inquiry> button on the control box of Ballast Displacement Device No. 1, and the <Heavy Load Inquiry> indicator light remains on.

[0073] S202: The No. 1 ballast release device control box sends a "heavy load inquiry" hold signal to the signal sub-control box;

[0074] S203: The signal control box sends a "heavy load inquiry" hold signal from the No. 1 load shedding device to the system integrated control device, so that the No. 1 load shedding device's "heavy load inquiry" indicator on the system integrated control device remains constantly lit.

[0075] S204: The No. 1 ballast release device control box sends a "heavy load inquiry" hold signal to the power plant monitoring system;

[0076] Based on the current power supply status of the ship's electrical grid, analyze whether it is permissible to start the No. 1 ballast release device. If the starting conditions are not met, then proceed as follows:

[0077] S210: The crew operates the <Stop / Cancel> button on the No. 1 ballast and ballast device control box, and at the same time, the No. 1 ballast and ballast device control box stops sending the "Heavy Load Inquiry" hold signal, and the signal is reset.

[0078] The process is complete.

[0079] If the startup conditions are met, then execute:

[0080] S205: Crew members are operating the No. 1 ballast release device <heavy load permitted> on the power plant monitoring system;

[0081] S206: The power plant monitoring system sends a "heavy load permitted" hold signal to the No. 1 ballast and ballast device control box, and the "heavy load permitted" indicator on the No. 1 ballast and ballast device control box remains constantly lit.

[0082] S207: The No. 1 ballast release device control box sends a "heavy load permitted" hold signal to the signal sub-control box;

[0083] S208: The signal control box sends a "heavy load permission" holding signal from the No. 1 load shedding device to the system integrated control device, so that the "heavy load permission" indicator of the No. 1 load shedding device on the system integrated control device is constantly lit.

[0084] S209: When the crew operates the <Start> button on the control box of Ballast and Load Displacement Device No. 1, the control box of Ballast and Load Displacement Device No. 1 stops sending the "Heavy Load Inquiry" hold signal. At this time, the "Heavy Load Inquiry" hold signal is reset, and the command to start Ballast and Load Displacement Device No. 1 is executed. After success, the <Start> indicator on the control box of Ballast and Load Displacement Device No. 1 will remain lit.

[0085] S114: The control box of the No. 1 ballast release device sends an "operating status" hold signal to the signal sub-control box;

[0086] S115: The No. 1 ballast and ballast device control box sends an "operating status" hold signal to the power plant monitoring system, causing the power plant monitoring system to stop sending the No. 1 ballast and ballast device "heavy load permitted" hold signal, and the "heavy load permitted" hold signal is reset.

[0087] S116: The signal control box sends the "operating status" hold signal of the No. 1 ballast evacuation device to the system integrated control device, so that the No. 1 ballast evacuation device <start> indicator of the system integrated control device is constantly lit.

[0088] Once the ship's sinking and floating operation is completed, the operation will continue:

[0089] S210: When the crew operates the <Stop / Cancel> button on the No. 1 Ballast Loading Device Control Box, the No. 1 Ballast Loading Device Control Box executes the command to stop the No. 1 Ballast Loading Device, and the <Start> indication on the No. 1 Ballast Loading Device Control Box is canceled.

[0090] S114: The control box of the No. 1 ballast release device sends an "operating status" hold signal to the signal sub-control box;

[0091] S116: The signal control box sends the "operating status" hold signal of the No. 1 ballast evacuation device to the system integrated control device, so that the No. 1 ballast evacuation device <start> indication of the system integrated control device is cancelled;

[0092] The process is complete.

[0093] More specifically, steps S201, S205, S209, and S210 require crew operation, while the other steps are automated control procedures.

[0094] More specifically, the No. 1 ballast venting device control box continuously sends an "operating status" hold signal (S116) to the system integrated control device via the signal sub-control box (S114); the No. 1 ballast venting device control box continuously sends an "operating status" hold signal (S115) to the power plant monitoring system. Therefore, when the No. 1 ballast venting device is in the operating state, the No. 1 ballast venting device <start> indicator on the system integrated control device is always lit; when the No. 1 ballast venting device is in the stopped state, the No. 1 ballast venting device <start> indicator on the system integrated control device is canceled or has no indication.

[0095] The above-described embodiments are merely one implementation of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A heavy-load inquiry control system for a ship's ballast discharge device, characterized in that, The system includes a comprehensive control unit, a signal sub-control box, a ballast and ballast discharge device control box, and a power station monitoring system. The comprehensive control unit serves as the remote control terminal for the ballast and ballast discharge device, equipped with soft / hard operation buttons for <Remote Control>, <Heavy Load Inquiry>, <Heavy Load Allowed>, <Start>, and <Stop / Cancel>, as well as status indicators. It is directly connected to the signal sub-control box via communication cables. The signal sub-control box is directly connected to both the comprehensive control unit and the ballast and ballast discharge device control box via communication cables. The ballast and ballast discharge device control box is the local control terminal for the ballast and ballast discharge device, equipped with soft / hard operation buttons for <Local / Remote Control>, <Heavy Load Inquiry>, <Heavy Load Allowed>, <Start>, and <Stop / Cancel>, as well as status indicators. It is directly connected to both the signal sub-control box and the power station monitoring system via communication cables. The power station monitoring system is the ship's electrical grid management terminal, equipped with soft / hard operation buttons for <Heavy Load Inquiry> and <Heavy Load Allowed>, as well as status indicators. It is directly connected to the ballast and ballast discharge device control box via communication cables. The ballast displacer control box continuously sends a "remote control status indication" hold signal to the system integrated control device; when in remote control mode, the ballast displacer control box and the system integrated control device's <remote control> indicator are always lit; when in local control mode, the system integrated control device's <remote control> indicator is not lit. The method for achieving remote control includes the following steps: S1.1 The crew member presses the <Heavy Load Inquiry> button on the integrated system control device; at this time, the integrated system control device sends a "Heavy Load Inquiry" hold signal to the signal sub-control box; the signal sub-control box sends the hold signal to the ballast and load shedding device control box, causing the <Heavy Load Inquiry> indicator on the ballast and load shedding device control box to remain lit; the ballast and load shedding device control box sends a "Received" hold signal back, which is finally transmitted to the integrated system control device via the signal sub-control box, causing the <Heavy Load Inquiry> indicator on the integrated system control device to remain lit, and at the same time, the ballast and load shedding device control box sends a "Heavy Load Inquiry" hold signal to the power plant monitoring system; S1.2 After receiving the "Heavy Load Inquiry" hold signal, the power station monitoring system analyzes whether the ballast discharge device can be started based on the current power consumption of the ship's power grid. If the starting conditions are not met, the crew operates the <Stop / Cancel> button on the integrated system control device to stop sending the "Heavy Load Inquiry" hold signal and reset it. That is, the <Heavy Load Inquiry> indication on the integrated system control device and the ballast discharge device control box is canceled, and the process ends. If the starting conditions are met, the crew operates the power station monitoring system to send a "Heavy Load Permit" hold signal to the ballast discharge device control box, making the <Heavy Load Permit> indication on the ballast discharge device control box constantly lit. At the same time, the ballast discharge device control box sends a "Heavy Load Permit" hold signal to the signal sub-control box, and then the signal sub-control box sends a "Heavy Load Permit" hold signal to the integrated system control device, making the <Heavy Load Permit> indication on the integrated system control device constantly lit. S1.3 When the <Heavy Load Permit> indicator on the system integrated control device is constantly lit, the crew member presses the <Start> button on the integrated control device of the operating system. The system integrated control device sends a "Start" instantaneous signal to the signal sub-control box and simultaneously stops sending the "Heavy Load Inquiry" hold signal. At this time, the "Heavy Load Inquiry" hold signal is reset. The signal sub-control box sends a "Start" instantaneous signal to the ballast and ballast device control box, causing the ballast and ballast device control box to execute the command to start the ballast and ballast device. After successful start, the <Start> indicator on the ballast and ballast device control box is constantly lit. Since the system integrated control device and the power station monitoring system continuously receive the "Operating Status" hold signal from the ballast and ballast device control box through the signal sub-control box, the <Start> indicator on the system integrated control device is constantly lit at this time, and the power station monitoring system stops sending the "Heavy Load Permit" hold signal. The "Heavy Load Permit" hold signal is reset. S1.4 After the vessel's sinking and floating operations are completed, the crew presses the <Stop / Cancel> button on the integrated control device of the operating system. The integrated control device sends a "Stop" instantaneous signal to the signal sub-control box, which in turn sends a "Stop" instantaneous signal to the ballast and ballast removal device control box. The ballast and ballast removal device control box executes the command to stop the ballast and ballast removal device. After a successful stop, the <Start> indication on the ballast and ballast removal device control box is canceled. Since the integrated control device and the power station monitoring system continuously receive the "Operating Status" hold signal from the ballast and ballast removal device control box through the signal sub-control box, the <Start> indication on the integrated control device is canceled at this time. The method for achieving local control includes the following steps: S2.1 The crew member operates the <Heavy Load Inquiry> button on the ballast discharge device control box to keep the <Heavy Load Inquiry> indicator constantly lit, and at the same time sends a "Heavy Load Inquiry" hold signal to the signal sub-control box and the power station monitoring system; the signal sub-control box sends a "Heavy Load Inquiry" hold signal to the system integrated control device to keep the <Heavy Load Inquiry> indicator constantly lit on the system integrated control device; S2.2 After receiving the "Heavy Load Inquiry" hold signal, the power station monitoring system analyzes whether the ballast discharge device can be started based on the current power consumption of the ship's power grid. If the starting conditions are not met, the crew member presses the <Stop / Cancel> button on the ballast discharge device control box to stop sending the "Heavy Load Inquiry" hold signal. This signal is reset, meaning the <Heavy Load Inquiry> indication on the system integrated control device and the ballast discharge device control box is canceled, and the process ends. If the starting conditions are met, the crew member operates the power station monitoring system to send a "Heavy Load Permit" hold signal to the ballast discharge device control box, making the <Heavy Load Permit> indicator on the ballast discharge device control box constantly lit. At the same time, the ballast discharge device control box sends a "Heavy Load Permit" hold signal to the signal sub-control box, and the signal sub-control box sends a "Heavy Load Permit" hold signal to the system integrated control device, making the <Heavy Load Permit> indicator on the system integrated control device constantly lit. S2.3 When the <Heavy Load Permit> indicator on the ballast and ballast device control box is constantly lit, the crew member operates the <Start> button on the ballast and ballast device control box. The ballast and ballast device control box stops sending the "Heavy Load Inquiry" hold signal, and the "Heavy Load Inquiry" hold signal is reset. At the same time, the command to start the ballast and ballast device is executed. After successful start, the <Start> indicator on the ballast and ballast device control box remains constantly lit. Since the system integrated control device and the power plant monitoring system continuously receive the "Operating Status" hold signal from the ballast and ballast device control box through the signal sub-control box, the <Start> indicator on the system integrated control device remains constantly lit at this time. At the same time, the power plant monitoring system stops sending the "Heavy Load Permit" hold signal, and the "Heavy Load Permit" hold signal is reset. S2.4 After the vessel's sinking and floating operations are completed, the crew operates the <Stop / Cancel> button on the ballast and ballast removal device control box. The ballast and ballast removal device control box executes the command to stop the ballast and ballast removal device. After the stop is successful, the <Start> indication on the ballast and ballast removal device control box is canceled. Since the system integrated control device and the power station monitoring system continuously receive the "Operating Status" hold signal from the ballast and ballast removal device control box through the signal sub-control box, the <Start> indication on the system integrated control device is canceled at this time. The ballast and load shedding device control box continuously sends an "operating status" hold signal to the system integrated control device and the power plant monitoring system; when the ballast and load shedding device is in the operating state, the <start> indicator of the system integrated control device and the ballast and load shedding device control box is always lit; when the ballast and load shedding device is in the stopped state, the <start> indicator of the system integrated control device and the ballast and load shedding device control box is not lit. The <Stop / Cancel> button and status indicator are used to stop the ballast and load distribution device when it is in operation. When the ballast and load distribution device is stopped, the <Stop / Cancel> button and status indicator on the operating system integrated control device or the ballast and load distribution device control box will stop sending the "Heavy Load Inquiry" hold signal and reset the signal.

2. The ship ballast discharge device heavy load inquiry control system according to claim 1, characterized in that, Communication cables can generally use serial, parallel, Ethernet, or digital / analog communication methods.

3. The ship ballast discharge device heavy load inquiry control system according to claim 1, characterized in that, On the integrated control device, the <Heavy Load Inquiry>, <Start>, and <Stop / Cancel> buttons should also have status indication functions, while <Remote Control> and <Heavy Load Allow> should only have status indication functions. On the load shedding device control box, the <Local / Remote Control>, <Heavy Load Inquiry>, <Start>, and <Stop / Cancel> buttons should also have status indication functions, while <Heavy Load Allow> should only have status indication functions. On the power plant monitoring system, the <Heavy Load Inquiry> button should only have status indication functions, while the <Heavy Load Allow> button should also have status indication functions.

4. The ship ballast discharge device heavy load inquiry control system according to claim 1, characterized in that, The integrated system control device, signal sub-control box, and power plant monitoring system are considered as one unit, while there can be multiple ballast and load shedding device control boxes. When there are multiple ballast and load shedding device control boxes, the integrated system control device should have multiple sets of <local / remote>, <overload inquiry>, <start>, and <stop / cancel> buttons and status indicators, and the power plant monitoring system should have multiple sets of <overload allow> buttons.

5. The ship ballast discharge device heavy load inquiry control system according to claim 1, characterized in that, In the remote control method, except for the control of the system integrated control device's <Heavy load inquiry>, <Stop / Cancel>, <Start> and the power plant monitoring system's <Heavy load permission> which require crew operation, all other operations are automatic control processes.

6. The ship ballast discharge device heavy load inquiry control system according to claim 1, characterized in that, In the local control method, except for the control of the <Heavy Load Inquiry>, <Stop / Cancel>, and <Start> of the ballast discharge device control box and the <Heavy Load Permit> of the power plant monitoring system, which require crew operation, all other operations are automatic control processes.

7. The ship ballast discharge device heavy load inquiry control system according to claim 1, characterized in that, The "Overload Inquiry", "Overload Allow", and "Running Status" signals are hold signals; the "Start" and "Stop / Cancel" signals are momentary signals; "Overload Inquiry" or "Overload Allow" hold signal reset means that when the "Overload Inquiry" or "Overload Allow" hold signal stops sending, the corresponding constantly lit indicator part will automatically cancel the indication.

8. The ship ballast discharge device heavy load inquiry control system according to claim 1, characterized in that, The buttons and status indicators of the system integrated control device, the ballast and ballast release device control box, and the power plant monitoring system are all for a specific ballast and ballast release device; the control methods for different ballast and ballast release devices are the same.

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