JPH1086887A - Water injection discharge control method by monitoring liquid level of ballast tank of ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate water injection discharge control of a tank by providing a communication wire to connect plural signal collecting delivering means and information processing means to each other. SOLUTION: A liquid level position signal detected by a level gauge 2a is sent to signal collecting delivering means 20a, and the signal collecting delivering means 20a performs A/D conversion on the liquid level position signal, and transmits communication data (the liquid level position signal) through a two- core communication wire 23 by adding one's own station number. Information processing means 24 judges whether or not it is the communication data of the registered one's own station number, and takes in this communication data when it is the communication data of the registered one's own station number. When average liquid level position signals are more than it, a ballast pump is driven to discharge water, and communication data (a valve opening/ closing indicating signal of 'opening') are transmitted to signal collecting delivering means 20a, 20w and 20x.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling the level of a ballast tank of a ship by detecting the level of the level of the ballast tank of the ship and monitoring the level of the ballast tank of the ship to fill and drain the ballast tank to a preset optimum amount of water. About.

[0002]

2. Description of the Related Art Since the weight of cargo and the like to be transported varies depending on the navigation of the ship, the ship is required to maintain a predetermined draft or to tilt the ship due to the arrangement of the cargo and the like.
Alternatively, a plurality of ballast tanks are provided to prevent inclination due to wind during navigation, and a liquid surface position detection mechanism is provided to detect a liquid surface position of seawater or the like injected into the tank. To display the liquid level position of the tank,
And, during navigation, in order to adjust the draft of the optimal ship,
A valve opening and closing mechanism is provided to inject and drain the tank.

FIG. 6 is a schematic diagram showing a conventional liquid level detection mechanism for detecting the liquid level of a ballast tank of a ship, and a valve opening and closing mechanism for injecting and draining the tank. , A plurality of ballast tanks 1a, 1b,
1c, 1d, 1e, 1f are arranged over the entire hull, and roughly speaking, these tank groups 1a, 1b, 1f
c, 1d, 1e, and 1f, and an operation unit K disposed at a position distant from the tank unit T, these tanks 1a, 1b, 1c, 1d, 1e, 1
The liquid level position of f is displayed, and the drainage to the tanks 1a, 1b, 1c,... is controlled by the displayed liquid level position.

In FIG. 6, 1a, 1b, 1c,.
Is a ballast tank, and the ballast tank 1
The liquid level detection mechanisms a, 1b, 1c,... are described below. Reference numerals 2a, 2b, 2c,. This is a liquid level gauge that converts the signal into an electric signal and transmits the signal. The output of the liquid level gauge is used as a liquid level signal line 3a, 3
The liquid level position is displayed on the liquid level meters 4a, 4b, 4c,... arranged on the operation unit K via b, 3c,.

That is, a liquid level gauge 2a provided in the ballast tank 1a is connected to a liquid level gauge 4a via a signal line 3a, detects a water head pressure based on a liquid level position in the ballast tank 1a, and detects the detected value. The voltage value is amplified by an internal amplifier to obtain a voltage value of minus 5 V to plus 5 V and is displayed on a liquid level meter 4a provided in the operation unit K. For example, in the case of minus 5V, the liquid level position of the ballast tank 1a is zero, and in the case of plus 5V, the liquid level position of the ballast tank 1a is displayed as full on the liquid level meter 4a. Similarly, ballast tanks 1b, 1
are displayed on the liquid level gauges 4b, 4c,... disposed on the operation unit K, and the ballast tank 1
It is configured such that how much liquid is supplied to a, 1b, 1c,... can always be displayed.

Further, as shown in FIG. 6, reference numerals 5a, 5b, 5c,... Denote filling / draining ports provided in the tank.
, 1c,... and pouring and drainage ports 5a, 5b, 5c,.
Is connected to the main pipe 6 via pipes 6a, 6b, 6c,..., The main pipe 6 is connected to a ballast pump 7a arranged at a predetermined position by piping inside the ship, By the drive motor 7b and the motor switch 7c,
Each of the ballast tanks 1a, 1b, 1c,...

In FIG. 6, 5w is a drain port for draining water from the hull, 5z is a water intake port for sucking water from outside the boat, and these drain ports 5w and 5z are valves 5w, 5z, respectively. Through the ballast pump 7a
It is connected to the. The pipes 6a, 6b, 6
The valves 8a, 8b, 8c,.
Are connected and these valves 8a, 8b, 8c,.
··· Hydraulic cylinders 9a, 9b, 9 for opening and closing
are provided, and the solenoid valves 10a, 10b, 10
c, ..., the hydraulic cylinders 9a, 9b, 9
The pressure direction of the hydraulic pressure applied to c,... is switched.

[0008] Further, 11 is disposed on the operation section K,
Are hydraulic units that supply hydraulic pressure to the hydraulic cylinders 9a, 9b, 9c,..., And are pressurized by a high-pressure hydraulic copper
2 and utilizing the hydraulic pressure difference between these two steel pipes 121, 122, the hydraulic cylinders 9a, 9b, 9c,
.. Are driven and the valve 8 is driven by the driving force.
a, 8b, 8c,... are opened and closed. In the figure, 13a, 13b, 13c,... Are switches arranged on the operation unit K for instructing opening and closing of the valves 8a, 8b, 8c,.
3b, 13c,... Are valves 8a, 8b, 8c,.
Control the solenoid valves 10a, 10b, 10c,... Which actuate in the opening direction and the closing direction, respectively, which are hydraulic copper pipes 121a, 121b, 121c,.
, 122b, 122c,..., and by driving the respective hydraulic cylinders 9a, 9b, 9c,.

Incidentally, 14a, 14b, 14c,...
Is a bulb display lamp that indicates the state of the valves 8a, 8b, 8c,... (Actually, the states of the solenoid valves 10a, 10b, 10c,...). , A blue lamp (not shown) is turned on, and when closed, a red lamp (not shown) is turned on.

The valve opening / closing mechanism including the valve 8a, the hydraulic cylinder 9a, and the solenoid valve 10a includes the other valves 8b, 8c,..., The hydraulic cylinders 9b, 9c,. , 10c,... Perform the same operation,
And the hydraulic pressure from the hydraulic copper pipe 122 to the hydraulic steel pipe 121b,
.. 122b, 122c,..., And the status is displayed on the bulb display lamp.

The drain port 5w and the water intake port 5z are provided with valves 8w, 8x, 8y, 8z and a hydraulic cylinder 9 respectively.
w, 9x, 9y, 9z, solenoid valves 10w, 10x, 10
y, 10z, these valves 8w, 8x, 8
.., 13z provided on the operation section K are instructed to open and close, and the open / closed state is indicated by the valve display. Displayed on the lamps 14w,... 14z.

Next, the liquid surface position of the tank 1a is detected,
The outline of water injection into the tank 1a will be specifically described. First, the liquid level position from the liquid level meter 2a in the tank 1a is displayed on the liquid level meter of the operation unit K, and information on how much water is injected is obtained. On the basis of this, when the level is higher or lower than the predetermined liquid level, the pipe 13 is turned on by turning on a switch 13a provided in the operation section K.
The valve 8a provided at a is opened. Next, the hydraulic unit 11 arranged in the operation unit K is operated to increase the hydraulic pressure of the hydraulic steel pipe 121 and the hydraulic pressure of the hydraulic steel pipe 122 so that the hydraulic oil circulates. When the switch 13a is turned on, the solenoid valve 10a is driven,
The valve 8a is opened.

Accordingly, the solenoid valve 10a turns on the bulb display lamp 14a to indicate that the bulb 8a is open. Subsequently, by turning on the motor switch 7c provided in the operation unit K, driving the motor 7b, and operating the pump 7a, water is injected into the tank 1a through the main pipe 6 and the valve 8a. . In this water injection, the switch 1 of the operation unit K
The open switches 13y and 13z of 3y and 13z are turned on, the solenoid valves 10y and 10z, the hydraulic cylinders 9y and 9z are operated, the valves 8y and 8z are opened, and a required amount of water is taken out of the boat.

When the liquid level displayed on the liquid level meter 2a reaches a predetermined amount of water, a predetermined amount of water has been injected into the tank 1a.
Is closed, the valve 8a is closed, and the injection of water into the tank 1a is stopped. Accordingly, the valve indicator lamp 14a is turned on from the cylinder 9a to indicate that the valve 8a is closed.

The drainage of the tank 1a is performed by the operation unit K.
Switches 13w, 13x open switches 131w, 13x
1x is input, the hydraulic cylinders 9w and 9x are operated, the valves 8y and 8z are opened, and the pump 6a is operated.
Tanks 1a, 1b, 1c,...
In addition, an excess amount of water as a whole is discharged outboard from the drain 5w. Similarly, the other tanks 1b, 1c,.
Also, when pouring and draining water into and out of the tank 1a, the same operation is performed.

[0016]

However, a liquid level gauge, a switch for a hydro unit, a switch for a ballast pump, a number of valve opening / closing switches, a number of lamps for indicating valve opening / closing, and the like are scattered in various parts of the operation section. The operation switch of the pump and the hydro unit, which are disposed at predetermined positions of the operation unit and monitor the liquid level meters on which the liquid level positions of the respective tanks are displayed, are disposed at another predetermined position of the operation unit. The operation switch and the valve open / close switch must be turned on, and the lamp that indicates the open / closed state of the valve must be checked.
The work was very complicated and required a large number of workers.

Further, since it is necessary to connect the liquid level gauge arranged in the ballast tank and the liquid level gauge arranged in the operation unit with independent signal lines, the number of wirings is proportional to the number of tanks. And the wiring work becomes complicated,
It was very time-consuming. The signal line connecting the liquid level gauge installed in this ballast tank and the liquid level meter arranged in the operation unit has a length of several tens of meters for a long one and several meters for a short one. When transmitting and receiving the liquid surface position signal using different signal lines, a voltage drop is caused, and the transmitted signal value varies. If the tank is filled and drained based on such a liquid level gauge on which the liquid level is displayed, the recovery may be delayed while the vessel is tilted, unlike the actual liquid level. Or
In addition, there is a drawback that the water must be drained and relied on the intuition of the worker for the recovery. In addition, the opening and closing of the valve is determined based on the state of the solenoid valve arranged in the operation unit, and the lamp display is performed, so a time lag occurs between the actual valve opening and closing, and the lamp display There is a problem that the reliability of the content is reduced. And these things had the problem that many skilled seafarers had to be assigned to this pouring and draining operation.

The present invention has been made in view of the above-mentioned conventional circumstances, and has a hydraulic cylinder and an electromagnetic valve that open and close valves for injecting and discharging water into a plurality of tanks, and a liquid surface position in which water is injected into the tanks. A plurality of collecting and distributing means, and further connecting the collecting and distributing means and the information processing means by a communication line composed of at least two cores, according to an instruction from the information processing means, , And further compares the detected liquid level with a preset liquid level, and the detected liquid level does not match the preset liquid level of each tank. In this case, according to a program stored in advance in the information processing means, an open / close signal of a specific valve is sent to the electromagnetic valve to cause the valve to open and close, and the open / close state of the valve is detected by a hydraulic cylinder, Open the valve Since the state is transmitted to the information processing means, the operation switches of the pumps scattered in various places of the operation room to be filled, based on the liquid level position displayed on the liquid level meter, and the hydro, as conventionally performed, There is no need to operate the unit's operation switch, switch for pouring and draining, etc.
The control of the information processing means alone makes these filling and draining operations easier, and allows the operator to easily control the filling and draining of the tank. The aim is to provide a method.

[0019]

According to a first aspect of the present invention, there is provided a method for controlling pouring and draining water by monitoring the liquid level of a ballast tank of a ship, wherein a liquid level detected by a liquid level gauge provided in a plurality of ballast tanks of the ship is provided. An operation valve provided in the tank based on a liquid level meter that indicates a surface position, and an electromagnetic valve that opens and closes a hydraulic cylinder connected to the water injection valve and provided in the tank. While displaying on the display unit, in the operation room, in the ballast tank injection and drainage control method for instructing the opening and closing of the solenoid valve and the valve, and displaying the open and closed state of each valve, the liquid level gauge, the hydraulic cylinder and Connected to the solenoid valve, receives a liquid level position signal from the liquid level gauge, sends an open / close signal to the hydraulic cylinder and the solenoid valve, and opens and closes the hydraulic cylinder and the solenoid valve. A plurality of collection / distribution means for receiving the status, and a program stored in advance, temporarily stores a valve opening / closing instruction signal and a valve opening / closing state signal, and further performs a predetermined analysis based on the stored results, and the analysis result And information processing means for instructing the opening and closing of the valve, and at least two communication lines connecting between the plurality of collecting and distributing means and the information processing means.

The invention according to claim 2 of the present application is directed to claim 1
In the method for controlling pouring and draining by monitoring the liquid level of a ballast tank of a ship, the plurality of collecting and distributing means transmits a liquid level position signal from a liquid level gauge in the ballast tank to the collecting and distributing means, In the means, the signal of the own station is added to the signal, and the signal is transmitted to the information processing means via the communication line. After receiving the signal, the information processing means performs a predetermined analysis. The number of the own station is added to the signal of the opening / closing instruction and sent to the collecting and distributing means via the communication line, and the collecting and distributing means adds the number of the own station and the information processing means. The obtained number data is collated, and when collated, the valve opening / closing signal is fetched, and the solenoid valve and the hydraulic cylinder are driven by the fetched valve opening / closing signal.

The invention according to claim 3 of the present application is directed to claim 1
In the method for controlling pouring and draining water by monitoring a liquid level of a ballast tank of a ship according to the above, the information processing means stores a program stored in advance based on a liquid level position signal from each liquid level gauge and an open / closed state signal of each valve. Thus, the liquid level position of these tanks and the valve opening / closing state are displayed on the screen of the information processing means. According to a fourth aspect of the present invention, in the method for controlling pouring and draining by monitoring the liquid level of the ballast tank of the ship according to the first aspect, the information processing means may be configured such that a liquid level position of each ballast tank and an open / closed state of each valve. Based on the program stored in advance, the opening and closing of each valve is instructed.

The invention according to claim 5 of the present application is directed to claim 1
In the filling / draining control method by monitoring the liquid level of a ballast tank of a ship according to the above, the information processing means samples the liquid level position signal, calculates an averaged data thereof, and sets a preset optimal liquid level. It is characterized in that it is compared with the surface position data, and based on the result of the comparison, an instruction is made to inject or drain the ballast tank. The invention according to claim 6 of the present application is the method for controlling pouring and draining by monitoring the liquid level of a ballast tank of a ship according to claim 1, wherein the information processing means opens and closes any one of the valves from the information processing means. It is characterized by instructing to drive or stop the hydro unit and the ballast pump based on the instruction.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a method for controlling the filling and draining of a tank of a ship according to the present invention, a liquid level gauge for detecting a liquid level in the tank, a solenoid valve for driving a valve for filling and discharging the tank, and a hydraulic cylinder are provided. Connected to multiple collection and distribution means,
It sets the optimal liquid level position in the tank, receives the liquid level signal from the level gauge, gives an adjustment instruction to the solenoid valve, and receives information about the valve open / close state from the hydraulic cylinder. An output interface, the plurality of collecting / distributing means and the input / output interface are connected by at least a two-core communication line, and a liquid level gauge for detecting a liquid level position and a solenoid valve for driving a valve to be opened and closed; and In the collecting and distributing means to which the hydraulic cylinder is connected, the information processing means to which the input / output interface is connected is set with a local number and a source number for specifying a transmission / reception destination of a signal to be transmitted / received. When a liquid level position signal is issued from the level gauge, the collecting and distributing means adds the own station number and transmits the signal, and the information processing means connected via the input / output interface records the signal therein. By the set program, a preset source number is compared with the own station number of the collecting and distributing means, and when they match, the signal is fetched, and based on the fetched signal, the information processing means While displaying the liquid level of the tank on the screen, if it does not match the preset optimal liquid level, transmit the solenoid valve by adding the source number of the collecting and distributing means to the valve opening and closing instruction signal, In the collecting and distributing means, it is compared with the set source number,
If they match, the valve opening / closing instruction signal is fetched and the solenoid valve and the hydraulic cylinder are driven based on the fetched signal. The information processing means checks the own numbers and, if they match, temporarily stores the fetched signal for each own number, displays it on a screen, and displays the optimal liquid. Fill and drain the tank until it reaches the surface position. Further, at this time, when the information processing means issues a valve opening / closing instruction signal, the information processing means sends a turn-on / stop instruction to a switch of the hydro unit and the ballast pump for applying hydraulic pressure to the hydraulic cylinder.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for controlling pouring and draining by monitoring the liquid level of a ballast tank of a ship according to the present invention will be described in detail with reference to the drawings. The same parts as those in the related art are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 is a schematic configuration diagram of a water injection / drainage system for performing water injection / drainage by monitoring the liquid level of a tank of a ship according to the present invention. In FIG. 1, 20a, 20
, b, 20c, ... are the ballast tanks 1a, 1
, provided in various tanks such as b, 1c,..., hydraulic cylinders 9a, 9b, 9c,. , 10a, 10b, 10c,... In the present embodiment, the input of an analog signal for converting an input analog value into a digital value and outputting the digital value, and the input and output of a digital signal Holonic Hub TM-ADC
(Product of Mibu Electric Works, Ltd.).

In the figure, reference numerals 21a, 21b, 21
c,... are the collecting and delivering means 20a, 20b, 20
, and cylinder signal lines 22a, 22b, 22c,... connecting the hydraulic cylinders 9a, 9b, 9c,.
.. means the collecting and distributing means 20a, 20b, 20c,.
, And electromagnetic valve signal lines 23 connecting the electromagnetic valves 10a, 10b, 10c,..., And 23 are communication lines connecting the collecting and distributing means. 24 is information processing means, and 24a is
The display screen of the information processing means, 27b is a keyboard,
Reference numeral 4c denotes a mouse, and 25 denotes an input / output interface which is a collection / distribution unit.

The information processing means 24 may be a display means 24a comprising a CRT display device or the like.
May be a personal computer equipped with
The optimal liquid level position of the ballast tank is set in accordance with various programs stored in advance in the storage means provided in the information processing means 24. In order to perform the drainage, the opening and closing instructions of the valves 8a, 8b, 8c,... And the status display of the valves 8a, 8b, 8c,. It is stored in a storage means (not shown) inside the information processing means 24, and based on the stored valve state data, the hydro unit 8, the pump 4a
Is operated to perform pouring and drainage.

In this embodiment, a holonic hub PC-LINK (manufactured by Mibu Electric Co., Ltd.) is used as the input / output interface 28, and this is inserted into an expansion slot (not shown) provided in the information processing means 27. Inserted, and each collection / distribution means 20a, 2
0b, 20c,..., And communication data from each collection / distribution means 20a, 20b, 20c,.

FIG. 2 shows the plurality of collecting and delivering means 20a, 2a
, 0b, 20c,... Via the communication line 23, and further, the collection / distribution means 20a, 20b, 20c,.
.. Are arranged near a tank (not shown in FIG. 2) and are connected to the hydraulic cylinder 9 connected to the tank.
, 9b, 9c,... and solenoid valves 10a, 10b,
It is explanatory drawing which showed the outline of this system connected to 10c, ....

These collection / distribution means 20a, 20b, 20
c,... transmit and receive signals corresponding to various data stored in the information processing means by performing predetermined settings.
And the information processing means 24, the collecting and distributing means 20a
Describes how the data stored in the information processing means 24 and the data of the information processing means 24 specify the collection / distribution means 20a and transmit and receive signals (accordingly,
The following will be described simply as the collecting and distributing means 20. ).

The collecting and distributing means 20, as shown in FIG.
It has an outer shape of 93 mm in length, 63 mm in width, and 62 mm in depth, and 24 V DC (not shown) of an operation power supply is applied to the power terminals 201 and 241. Further, the terminator terminals 202 and 242 are connected to a terminator (not shown) having a predetermined resistance value and connected to a terminating member having a predetermined resistance value to adjust the impedance when the collecting and distributing means is disposed at the end. Terminal, but said collection and distribution means 20
Is not located at the end in this example,
Nothing is connected to this terminal 202. further,
As described above, the communication terminal 203 is connected to the communication line 23.

In the collecting and distributing means 20, among the external input / output terminals 207 to 2019, 207
A common terminal (ground), 208 and 209, the hydraulic cylinder 9, 2012, 2013, 2014,
The solenoid valve 10 is connected, and 2017 is the liquid level gauge 2.
a is connected. In the collecting and distributing means 20w to 20z, there is no need to detect the liquid level, so that nothing is connected to 2017.

In such a connection relationship, in order to exchange necessary signals with each other, it is necessary to specify each other between the collecting and distributing means and the information processing means. For this reason, the collecting and distributing means 20 and the information processing means 24 need to specify settings for specifying each other. The collecting and distributing means 20 includes the own station number setting switch 205 and the source number setting switch. 206, and the information processing means 24 must perform setting registration by an internal program. For example,
In order to transmit and receive signals between the collecting and distributing means 20 and the information processing means 24, the collecting and distributing means 20 shown in a dotted frame above each collecting and distributing means has its own station number "04", The information processing means 24 has a source number "24" and a source number "04" registered as corresponding parts of the collecting and distributing means 20 by an internal program. I have.

The setting of the own station number "04" and the source number "24" in the collecting and distributing means 20 will be described below. FIG. 3 shows a local station number setting switch 205 composed of an 8-digit dip switch (see FIG. 3A).
And FIG. 3B schematically shows the source number setting switch 206 (see FIG. 3B). 1 to No. The switch is set to “■”, and the position to which no switch is set is indicated by “□”. However, for convenience of explanation, the ON state is hereinafter referred to as a numeral “1”.
The OFF state is represented by the numeral "0", and the description will be made using only the own station number setting switch 205 and the source number setting switch 206 of the collecting and distributing means 20.

For example, in the collecting and distributing means 20,
Assuming that the own station number is "04", in order to set the own station number in the collecting and distributing means 20, as shown in FIG. 1 to No. Own station number setting switch 2 consisting of a dip switch composed of eight switches up to 8
At step 05, the DIP switches of “No. 1” and “No. 2” are set to “0” and “0”, respectively, and the next six dips from “No. 3” to “No. The switch is set to be "1000".
Therefore, the own station number “04” of the collection and distribution means 20
Is indicated by “001000”.

Next, in order to transmit and receive signals between the collection / distribution means 20 and the information processing means 24 as the other party, in addition to the setting of the own station number, the setting of the source number is required. Must. For example, if one of the own numbers registered in the information processing means 24 is "24", the own number is set to the source number setting switch 20 of the collecting and distributing means 20.
6 can be set using the DIP switch of FIG.
As shown in FIG. 1 to No. In the source number setting switch 206 which is a dip switch composed of eight switches up to eight, "No. 1" and "N"
o. 2 "DIP switches are set to" 0 ","
0 ”and the next“ No. 3 "to" No. For the six dip switches up to 8 ", the setting is made to be" 0110. "Therefore, the source number" 24 "of the information processing means 24 set in the collecting and distributing means 20 is set.
Is represented by “000110”. In the information processing means 24, the own station number "2"
4 "and the source number (in this case, the
Number (own station number) for the information processing means 24,
"04", which is one of the source numbers, is set and registered by the program.

As described above, when the own station number and the sender number are set in the collection / delivery means 20 and the own station number and the sender number are registered in the information processing means, for example, a signal from the information processing means 24 is output. Is added to the communication line 23 together with the data to be communicated, with the registered own station number “24” added thereto, and the collecting and distributing means 20 uses the transmitted communication data as a reference based on the source number. It is determined that the communication data is communication data addressed to the own station, and the communication data is fetched. Also,
Conversely, in the communication data from the collecting and distributing means 20, data to which the own station number "04" is added is placed on the transmission line 23, and the information processing means 2 in which the source number "24" is registered.
In 4, the transmitted communication data is taken in, the communication data is assumed to be communication data from the collection / distribution unit 20, and this data is stored in the storage unit (not shown) as data of the collection / distribution unit 20 having the own station number “24”. . Similarly, data from other collection / distribution means is stored separately for each own station number.

In the present embodiment, the communication line 23 uses a twisted pair cable (for RS485) which is formed by twisting these two conductors with an insulating coating applied thereto, and using the above-mentioned collecting and distributing means 20a, , An input / output interface 2 connected to the information processing means 24
5 connection terminals (not shown). That is, the communication terminal 203 of the collecting and distributing means 20a and the collecting and distributing means 2
0b, the communication terminal 203 of the collecting and distributing means 20b, the communication terminal 203 of the collecting and distributing means 20c, and the like. , And a connection terminal (not shown) of the input / output interface 25.

Next, in order to inject and drain the tank 1a by the system having the above configuration, first, the liquid level meter 2a detects the liquid level position, and the detected liquid level position is set to a predetermined optimum level. Compared with the liquid level position, if they are not equal, the solenoid valve 10a is actuated to activate the hydraulic cylinder 9a to open the valve 8a to start filling and draining of the tank 1a in order to perform filling and draining of the tank. At the same time, the state is changed by the information processing means 24 in the operation section K away from the tank 1a.
A method for injecting and draining a series of tanks based on the liquid level monitoring instructed or displayed by the user is shown in the flowchart of FIG.

First, the input means 24 of the information processing means 24
The switches of the liquid level gauge in the tank are turned on from steps b and 24c (step S1). The optimal liquid level position of each tank in the ship is set (step S2). A hydro unit driving instruction is sent to drive the hydro unit (step S3). Then, a ballast pump driving instruction is sent to drive the ballast pump (step S4). The communication data (liquid level position detection instruction) is transmitted to the tank 1a, and the collection / distribution unit 20a determines whether the communication data is addressed to the own station. In the case of communication data (liquid level position signal) addressed to the own station, the communication data is taken in, a liquid level position detection instruction is transmitted to the liquid level gauge 2a, and the liquid level position of the tank 1a is detected by the liquid level gauge 2a. Is performed (step S5).

The liquid level position signal detected by the liquid level meter 2a is
The collection / distribution unit 20a sends the communication data (liquid level position signal) to the collection / distribution unit 20a by A / D converting the liquid level position signal, adding the own station number, and transmitting the communication data. The information processing means 24
It is determined whether it is communication data (liquid level signal) of the registered own number, and in the case of communication data (liquid level signal) of the registered own number, the communication data is fetched. Is repeated to acquire the liquid level position signal for the sampling to obtain the averaged data (step S
6). The information processing means 24 which has taken in these communication data (liquid level position signal) converts the liquid level position signal from analog to digital and then stores it in the storage means (step S7), and also uses a program stored in advance. Then, the liquid surface position of each ballast tank is displayed on the screen 24a (Step S)
8).

Next, the set optimum liquid level position,
The average liquid level position signals are compared (step S9), and if they are equal, the hydro unit and the ballast pump are stopped (steps S14, S15), and the process is terminated. When the average liquid level position signal is larger, the ballast pump is driven for drainage, and communication data (valve opening / closing instruction signal of “open”) is transmitted to the collection / delivery means 20a, 20w, and 20x.
The collection / distribution means 20a, 20w, and 20x each determine whether the communication data is directed to the own station (valve opening / closing instruction signal of "open"). If the communication data is addressed to the own station, the communication data ("open") is determined.
).

The fetched communication data ("open" valve opening / closing instruction signal) is transmitted to the solenoid valves 10a, 10w, and 10x, and the solenoid valves 10a, 10w, and 10x are switched (step S10), and the hydraulic cylinder 9a is switched. , 9w, 9x
Is driven, the valves 8a, 8w, 8x are opened (step S11), and a valve open / closed state signal of "open" is transmitted from the hydraulic cylinders 8a, 9w, 9x to the collecting / distributing means 20a, 20w, 20x. Collection and distribution means 20a, 20w, 2
0x transmits the communication data (“open” valve open / close state signal) to which the own station number is added, and transmits the state “open” of the valve.
Is displayed on the screen (step S12). As a result, the water in the tank 1a flows through the pipe 6 and drains 5w.
Drained from

When the average liquid level position signal is smaller, the ballast pump is similarly driven for water supply and communication data (valve opening / closing instruction signal of "open") is transmitted to the collection / distribution means 20a, 20y, 20z. ). Collection and distribution means 20
a, 20y, and 20z each determine whether the communication data is directed to the own station (“open” valve opening / closing instruction signal), and if the communication data is addressed to the own station, the communication data (“open” valve opening / closing instruction signal). Signal). The fetched communication data (“open” valve opening / closing instruction signal) is transmitted to the solenoid valves 10 a, 1
0y, 10z and transmitted to the hydraulic cylinders 9a, 9y, 9
z, the valves 8a, 8y, and 8z are opened, and the collecting and distributing means 20a,
The open / closed state signal of "open" is transmitted to 20y and 20z, and the collecting / distributing means 20a, 20y and 20z transmit the communication data to which the own station number is added (the open / closed state signal of "open").
Send Thereby, the water outside the boat is taken from the water inlet 5z, flows through the pipe 6, and is injected into the tank 1a. When the above processing is completed (step S13)
The hydro unit 11 and the ballast pump 7a are stopped (steps S14 and S15), and the injection and drainage to the ballast tank ends. Similarly, the above-mentioned pouring and draining is performed for all the tanks (Steps S5 to S12), and the optimum draft of the ship can be maintained.

Further, the pouring and draining system by monitoring the liquid level of the ballast tank of the ship displays a switch and a valve open / close display on the screen 24a by a program stored in advance in the storage means in the information processing means 24. Predetermined pouring and draining is performed by a program stored in advance.

For example, as shown in FIG. 5, while the graphic display of the tanks 1a, 1b, 1c,... Water injection operation to each valve is performed. That is, as shown in FIG.
b, 1c,... and whether or not each of these tanks needs to be filled according to a predetermined program, or
A start button 29 for selecting whether or not drainage is required, or an end button 30 or the like which does not perform a predetermined process while maintaining the same state is displayed.
When the operator selects 30, a predetermined pouring / draining operation is automatically performed.

That is, as shown in FIG. 5A, the tank names corresponding to the ballast tanks 1a, 1b, 1c,..., The depth of the tanks (SOUND), and the liquid level position (LE)
VEL), alarm setting liquid level position (SET ALAR
M), and the liquid level position (LEVEL) is displayed in a graph or the like on the screen 24a or the like as the output means of the information processing means. Also, as shown in FIG. 5 (b), ballast tanks 1a, 1b, 1c,... Of the entire ship are illustrated, and in this figure, tank names, tank depths (SOUND), liquid level positions ( LEVEL) etc. are displayed on the screen 24a. Further, the tanks whose liquid level is 100% are colored and displayed on the screen 24a, while monitoring the liquid levels of the ballast tanks 1a, 1b, 1c,. Which of the tanks is being filled or drained, or the "OPEN" and "STOP" buttons are clicked with the mouse 24c to operate the hydro unit 11. Alternatively, in order to drive the ballast pump 7a, the "RUN" and "STOP" buttons are
By clicking on 4c, a signal is automatically sent, the switch 7c is turned on, the motor 7b is driven, and the ballast pump 7a is driven. Further, as a result, the display indicating the driving status of the hydro unit 11 and the ballast pump 7a, such as changing the brightness and color, is displayed on the screen 24a. Further, these data are stored at regular intervals, and the ballast tanks 1a, 1b, 1c,.
.. May be displayed by a line graph or the like (not shown).

Therefore, in accordance with the display contents displayed on the screen 24a, for example, whether or not to perform the filling / draining control of all the tanks is determined by moving the mouse 24c and clicking "STAR".
By performing operations such as clicking on the locations of "T" and "END", the same operations as those for driving the above-mentioned conventional hydro unit 11, ballast pump 7a, and turning on the conventional switch 13a can be performed. Without these, these filling and draining operations can be performed. In addition, since the information is displayed only on the display screen of the simple information processing means, the operation unit K
It does not require a large-scale device such as a control panel inside, and can save space.

In the above-described embodiment, the tanks are drained and drained from the drain port and the water is drawn from the intake port. However, in consideration of the liquid level positions of all the tanks, the set optimal liquid level position is determined. Injection and drainage may be performed from a large tank to a small tank. In addition, when pouring and draining between the tanks as described above, the water may be moved between the tanks when the ship is tilted. In this embodiment, a plurality of collection / distribution means (product name: Holonic Hub TM-ADC)
Was used to control data input / output and transmission / reception.
It is not limited to the method according to this embodiment. Further, an optical fiber cable may be used for the communication line according to the specification of the communication control unit of the means for performing input / output and transmission / reception control.

Although the above embodiment has been described for use in pouring and draining water into ballast tanks and the like of ships,
This tank is not limited to a ballast tank or the like, and may be applied to the injection and discharge of oil into an oil tank such as a tanker. Further, in the above-described embodiment, the information processing means is arranged in the operation unit, and the filling and draining of the tank is operated from here while monitoring the liquid level position to the tank. As long as the information processing means is disposed in a place other than the section, for example, a cockpit, a crew cabin, etc., the filling / draining operation by monitoring the liquid level of the tank may be performed.

[0050]

As described above, according to the filling / draining control method by monitoring the liquid level of the tank of the ship of the present invention, the liquid level gauge for detecting the liquid level position of each tank and the electromagnetic level for controlling the opening and closing of each valve are provided. A valve and a hydraulic cylinder are connected to the collecting and distributing means, the plurality of collecting and distributing means and the information processing means are connected by a two-wire communication line, and a liquid level position signal is obtained by a program stored in the information processing means. In addition to displaying the solenoid valve control signal and the valve opening / closing state signal on the screen in the form of figures, characters, and the like, the liquid level position of each tank is compared with a preset liquid level position, and it is necessary to perform pouring and drainage. Tanks to be selected and drained to and from the tanks in relation to the liquid level.After checking the indications of the liquid level meters scattered on the operation section, Turn on the various switches provided It is Note drainage work to simplify the tank to conventional that shall, as a result, an effect that eliminates the need for or the like for assigned personnel dedicated throughout is obtained.

Further, it is not necessary to connect the liquid level gauge arranged in the ballast tank and the liquid level gauge arranged in the operation unit with independent signal lines, respectively. The cylinder is connected to the collecting and distributing means, and furthermore, these collecting and distributing means are connected by a communication line so as to exchange signals, so that a signal due to a voltage drop generated when transmitted over a signal line having a different length. There is no variation in the values. As a result, based on the inaccurate display of the liquid level position, the conventional tank filling / draining operation, which has been performed based on the operator's long intuition, can be performed accurately and easily. . In addition, since the valve state signal is transmitted from the hydraulic cylinder that opened and closed the valve, the valve is instructed to open and close, and then the valve is actually opened or closed, or the valve is opened or closed. There is no time lag until the information is displayed on the display lamp, and the state of the valve and the liquid level of the tank are displayed accurately. In addition, since the display screen performs hierarchical and visual display using characters, figures, and the like, it is possible to perform various and multifaceted displays on one display screen. There is an advantage.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of a method for controlling pouring and draining by monitoring the liquid level of a tank of a ship according to the present invention.

FIG. 2 is an explanatory diagram showing the external shape of the collecting and distributing means used in one embodiment of the present invention and the connection relation of these collecting and distributing means.

FIG. 3 is a diagram schematically showing a switch for setting a local station number and a source number provided in a collecting and distributing means used in one embodiment of the present invention;

FIG. 4 is a flowchart showing one embodiment of a method for controlling water injection and drainage by monitoring the liquid level of a tank of a ship according to the present invention.

FIG. 5 is a diagram showing an example of a display screen of an information processing means used in a method of controlling water injection and drainage by monitoring a liquid level of a tank of a ship according to an embodiment of the present invention.

FIG. 6 is a configuration diagram illustrating a conventional method of filling and draining a tank of a ship.

[Explanation of symbols]

1a, 1b, 1c, 1d, 1e, 1f ... ballast tank 2a, 2b, 2c, 2d, 2e, 2f ... liquid level gauge 3a, 3b, 3c, 3d, 3e, 3f ... liquid level signal Line 5a, 5b, 5c, 5d, 5e, 5f: Inlet / drain port 5w: Drain port 5z: Intake port 8a, 8b, 8c, 8d, 8e, 8f: Valve 8w, 8x, 8y , 8z ... valves 9a, 9b, 9c, 9d, 9e, 9f ... hydraulic cylinders 9w, 9x, 9y, 9z ... hydraulic cylinders 10a, 10b, 10c, 10d, 10e, 10f ...
-Solenoid valve 10w, 10x, 10y, 10z ... Solenoid valve 11 ... Hydro unit 121, 122 ... Hydraulic steel pipe 121a, 121b, 121c, 121d, 121e,
121f... Hydraulic copper pipes 122a, 122b, 122c, 122d, 122e,
122f: hydraulic copper pipes 20a, 20b, 20c, 20d, 20e, 20f
Collection / collection means 201 Power supply terminal 202 Terminate terminal 203 Communication terminal 204 External input / output terminal 21a, 21b, 21c, 21d, 21e, 21f.
.Cylinder signal lines 22a, 22b, 22c, 22d, 22e, 22f
-Solenoid valve signal line 23-Communication line 24-Information processing means 24a-Screen 24b-Keyboard 24c-Mouse 25-Input / output interface

Claims (6)

[Claims] 1. A water filling / draining valve provided in a plurality of ballast tanks of a ship based on a liquid level gauge which indicates a liquid level detected by the tank and a hydraulic pressure connected thereto. A solenoid valve for opening and closing the cylinder, and displaying the open / closed state of the valve on a display unit in the remote operation room, and in the operation room, instructing the solenoid valve and the valve to open and close, and opening and closing each valve. In the ballast tank injection / drainage control method for displaying a state, the level gauge is connected to the hydraulic cylinder and the solenoid valve, receives a level level signal from the level gauge, and receives a signal indicating the state of the hydraulic cylinder and the solenoid valve. A plurality of collecting / distributing means for transmitting an opening / closing signal and receiving the opening / closing state from the hydraulic cylinder and the solenoid valve; and a valve opening / closing instruction signal and a valve opening / closing signal by a program stored in advance. The information processing means for temporarily storing the state signals, further performing a predetermined analysis based on the storage, and instructing the valve to open and close based on the analysis result; A method for controlling pouring and draining by monitoring the liquid level of a ballast tank of a ship, comprising a communication line having at least two cores connecting the processing means. 2. The collecting and distributing means transmits a liquid level position signal from a liquid level gauge in a ballast tank to the collecting and distributing means, and the collecting and distributing means adds a number of the own station to the signal. After transmitting the signal to the information processing means via the communication line and receiving the signal, the information processing means performs a predetermined analysis, and adds the own station number to the valve opening / closing instruction signal. Via the communication line to the collecting and distributing means, where the collecting and distributing means collates the added own station number with the number data added by the information processing means. 2. The system according to claim 1, wherein the valve opening / closing signal is captured, and the solenoid valve and the hydraulic cylinder are driven by the captured valve opening / closing signal. Control method. 3. The information processing means according to a program stored in advance based on a liquid level position signal from each liquid level gauge and an open / closed state signal of each valve, and a liquid level position of these tanks and a valve open / close state. 2. A method according to claim 1, wherein the status is displayed on a screen of the information processing means. 4. In the information processing means, based on the liquid level position of each ballast tank and the open / close state of each valve,
2. The method according to claim 1, wherein each valve is instructed to open or close according to a program stored in advance. 5. The information processing means samples the liquid level position signal, calculates averaged data, compares the averaged data with preset optimum liquid level position data, and, based on the comparison result, 2. The method for controlling pouring and draining by monitoring the liquid level of a ballast tank of a ship according to claim 1, wherein an instruction to pouring and discharging the ballast tank is issued. 6. The information processing means according to claim 1, wherein an instruction to drive or stop the hydro unit and the ballast pump is issued based on an opening / closing instruction for one of the valves from the information processing means. The method for controlling pouring and draining by monitoring the liquid level of the ballast tank of the ship described in the above.