KR100426971B1 - Key board apparatus for loading and unloading system of freight in oil-tanker - Google Patents

Abstract

The present invention relates to a keyboard apparatus for a cargo loading and unloading system of an oil tanker, which is capable of inputting a command promptly and conveniently at the time of inputting a command. The present invention relates to a power supply, a DC / DC converter, an alphabet and a number. A plurality of keys are provided and driven by a power source supplied from a key matrix, a decoder, and a DC / DC converter including a specific function key required by a cargo loading and unloading system. Generating command, recognizing command data corresponding to the position information transmitted from the decoder, transmitting the recognized command data to the cargo loading and unloading system, and driving the LED corresponding to the result signal transmitted from the cargo loading and unloading system. According to the LED driving signal output from the central processing unit, encoder, and encoder The key prevents noise from entering both signals when the command data output from the LED matrix, the buzzer, the central processing unit is transmitted to the cargo loading system, and the signal transmitted from the cargo loading system is transmitted to the central processing unit. By implementing a keyboard device with a photo coupler, an RS-232 driver, and a reset control unit, the keyboard required by HICHAS can be optimally implemented.

Description

Key board apparatus for loading and unloading system of freight in oil-tanker}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard device for a cargo loading system (HICHAS) of an oil tanker, and more particularly, to a keyboard device for a cargo loading system of a tanker, which enables a user to input a command quickly and conveniently when inputting a command.

In general, a system for loading and unloading a cargo in a conventional oil tanker or a cargo ship (also called "HICHAS") is provided, and a keyboard for inputting a specific command to such a system is provided with a key for entering a plurality of alphabets and numbers. Is provided, the user inputs alphabet or number corresponding to the command one by one.

However, since the keyboard applied to the conventional HICHAS inputs a command by pressing the alphabet corresponding to the command in order to input a command or presses all the numbers corresponding to the command, it is inconvenient to operate. In addition, there is a problem that can not respond quickly because the command input time is long.

In addition, when a user inputs a specific command through the keyboard, HICHAS does not have a corresponding response, so it takes time to confirm the command and has a disadvantage in that it is inconvenient.

In other words, the user has to watch the process of executing the command directly after inputting the command to know whether the command is correctly delivered or the command is executed correctly. Therefore, the command confirmation takes a long time and inconveniences in confirming the command. .

Accordingly, the present invention is proposed to solve the above problems of the prior art,

An object of the present invention is to provide a keyboard device for a cargo loading and unloading system of an oil tanker, which enables the command input at the time of command input.

"Keyboard device for cargo loading and unloading system of the tanker" according to the present invention for achieving the above object,

A power supply for supplying power required by the keyboard device;

A DC / DC converter for converting the DC voltage output from the power supply into a predetermined DC voltage required by each part of the keyboard and supplying the DC voltage to each part;

A key matrix provided with a plurality of keys for inputting alphabets and numbers, and including specific function keys required by the cargo loading and unloading system;

A decoder for detecting a key operated in the key matrix and decoding position information of the detected key;

Drives with the power supplied from the DC / DC converter, generates a buzzer sound when the position information is transmitted from the decoder, recognizes command data corresponding to the position information transmitted from the decoder, and loads the recognized command data. A central processing unit which transmits to a loading and unloading system and drives an LED corresponding to a result signal transmitted from the cargo loading and unloading system;

An encoder for encoding the LED driving signal output from the central processing unit;

An LED matrix for emitting a corresponding LED according to the LED driving signal output from the encoder;

A buzzer for driving the buzzer sound by driving the buzzer driving signal output from the central processing unit;

A photo coupler for preventing noise from entering both signals when the command data output from the central processing unit is transmitted to the cargo loading and unloading system and the signal transmitted from the cargo loading and unloading system is transmitted to the central processing unit;

An RS-232 driver connected to the photo coupler to transmit an output signal of the central processing unit to the cargo loading and unloading system, and a signal transmitted from the cargo loading and unloading system to the central processing unit through the photo coupler;

And a reset control unit for resetting the central processing unit.

1 is a block diagram showing the configuration of a keyboard device for cargo loading and unloading system of the tanker according to the present invention,

FIG. 2 is a circuit diagram illustrating an embodiment of a key matrix unit and a decoder of FIG. 1;

3 is a circuit diagram illustrating an embodiment configuration of an encoder and an LED matrix unit of FIG. 2;

4 is a diagram showing the layout of a key pad in the keyboard implemented by the present invention.

<Explanation of symbols for the main parts of the drawings>

120 ..... DC / DC Converters

130 ..... Key Matrix

140 ..... decoder

150 ..... Central Processing Unit

160 ..... Encoder

170 ..... LED Matrix

180 ..... buzzer

190 ..... Photo Coupler

200 ..... RS-232 Driver

210 ..... Reset control unit

Hereinafter, a preferred embodiment according to the present invention according to the technical spirit as described above in detail with reference to the accompanying drawings as follows.

1 is a block diagram showing the configuration of a keyboard apparatus for a cargo loading and unloading system of an oil tanker according to the present invention.

Here, reference numeral 110 denotes a power supply for supplying power required by the keyboard device, and reference numeral 120 designates a DC voltage output from the power supply 110 to a predetermined DC voltage required by each part of the keyboard. A DC / DC converter for supplying the respective parts is indicated, and reference numeral 130 denotes a key matrix having a plurality of keys for inputting alphabets and numbers, and having a specific function key required for a cargo loading / unloading system. , Reference numeral 140 denotes a decoder for detecting a key operated in the key matrix 130 and decoding position information of the detected key, and reference numeral 150 denotes a power supplied from the DC / DC converter 120. When driven, the buzzer sounds when the location information is transmitted from the decoder 140, and is transmitted from the decoder 140. Recognize the command data corresponding to the position information, and transmits the recognized command data to the cargo handling system ever, represents a central processing unit for driving the LED corresponding to the result signal transmitted by the enemy cargo handling system.

Also, reference numeral 160 denotes an encoder for encoding the LED driving signal output from the CPU 150, and reference numeral 170 denotes an LED matrix for emitting the corresponding LED according to the LED driving signal output from the encoder 160. Reference numeral 180 denotes a buzzer for driving a buzzer sound by driving according to the buzzer driving signal output from the central processing unit 150, and reference numeral 190 denotes a command data output from the central processing unit 150. When a signal transmitted to the cargo loading system (HICHAS) side, and the signal transmitted from the cargo loading and unloading system is transmitted to the central processing unit 150, it represents a photo coupler for preventing noise from entering both signals, 200 Is connected to the photo coupler 190 and the output signal of the central processing unit 150 is transmitted to the cargo loading and unloading system side, the cargo loading and unloading The signal transmitted from the system side represents an RS-232 driver for transmitting to the central processing unit 150 through the photo coupler 190, and reference numeral 210 denotes a reset control for resetting the central processing unit 150. Represents wealth.

The operation of the keyboard device for cargo loading and unloading system of the tanker according to the present invention configured as described above will be described in detail with reference to FIGS. 2 to 4 as follows.

First, the power supply 110 converts the input DC power (usually DC24V used by the ship) into a predetermined DC voltage (for example, DC5V), and supplies the DC power supply 110 to the DC / DC converter 120. A predetermined DC voltage outputted from the NXV is converted into a plurality of DC voltages required by each block in the keyboard device, and then supplied to each block.

When a voltage is appropriately supplied to each block by the DC / DC converter 120, the keyboard device is activated, and in this state, when the user operates a specific function key or numeric key provided in the key matrix 130. The decoder 140 detects the position information of the manipulated key and decodes the position information of the key to be transmitted to the CPU 150.

2 shows a configuration of an embodiment of the key matrix 130 and the decoder 140.

Here, the key matrix 130 has about 100 switches connected in a matrix structure, and each switch has unique information. Unlike the keyboard applied to the existing computer system, the key matrix 130 is capable of a high speed command input word, and has many specific function keys so that only the functions required by HICHAS can be input in the form of shortcut keys. Therefore, conventionally, all the alphabets corresponding to the corresponding command are pressed for the command input, but in the present invention, only the function key is operated once to enable the command input.

In Fig. 2, reference numerals 141 and 142 denote the same decoder, and two identical decoders are used due to the limitation of the speed and capacity of detecting and decoding positions in one decoder.

On the other hand, the central processing unit 150, when the data for a specific function key is transmitted from the decoder 140 as described above, by operating the buzzer 180, it is notified to the outside that the specific function key has been operated. Then, the user can easily recognize that a command manipulated by the user is input.

In addition, the central processing unit 150 outputs the input command data to the photo coupler 190 in order to transmit to the cargo loading and unloading system (HICHAS), the optical transmitter of the photo coupler 190 the command data to the optical signal The optical receiver receives the optical signal, converts it into an electrical signal, and transmits the converted electrical signal to the RS-232 driver 200.

The RS-232 driver 200 converts the input command signal according to the RS-232 communication method and transmits the command signal to the HICHAS through a communication line, and the HICHAS receiving the command transmits a response to the keyboard device through the communication line. Do it.

The RS-232 driver 200 processes the received signal and transmits the received signal to the photo coupler 190, and the photo coupler 190 transmits the signal to the CPU 150.

As is well known, when the CPU 150 receives a response from the HICHAS, the CPU 150 transmits a control signal for displaying the command to the encoder 160. The encoder 160 encodes an analog signal through encoding. After conversion to the LED matrix 170 is transmitted to the LED corresponding to the function to emit light. Then, the user can easily know the function currently being performed by checking only the light emitting LED.

3 is a circuit diagram illustrating an embodiment of the encoder 160 and the LED matrix 170.

In FIG. 3, reference numeral 161 denotes a flip-flop, and reference numeral 162 denotes an LED driver for driving the LED with the output signal of the flip-flop 161.

4 is a view showing a layout of a keypad implemented in the keyboard device according to the present invention.

As shown, specific function keys used in HICHAS are implemented in the form of a shortcut key, so that a user can input a command for a corresponding function with a single key operation, and thus a quick command transfer is made, so that the control operation can be performed at high speed. It can be processed.

According to the present invention described above, the specific function keys used in the HICHAS is implemented in the form of a shortcut key, the user has the advantage that the user can input a command for the corresponding function with a single key operation.

In addition, since the command input is quick and the command is quickly delivered, the control operation of the corresponding function can be performed at high speed.

In addition, the result of the command performed in the HICHAS can be notified to the user through the LED, there is an advantage that can suggest in advance the user should take the next action.

In addition, there are a number of advantages, such as the convenience provided when using HICHAS, and also has the advantage of improving the stability of the system.

Claims (1)

A power supply for supplying power required by the keyboard device; A DC / DC converter for converting the DC voltage output from the power supply into a predetermined DC voltage required by each part of the keyboard and supplying the DC voltage to each part; A key matrix having a plurality of keys for inputting alphabets and numbers, and including specific function keys required by the cargo loading and unloading system; A decoder for detecting a key operated in the key matrix and decoding position information of the detected key; Drives with the power supplied from the DC / DC converter, generates a buzzer sound when the position information is transmitted from the decoder, recognizes command data corresponding to the position information transmitted from the decoder, and loads the recognized command data. A central processing unit which transmits to a loading and unloading system and drives an LED corresponding to a result signal transmitted from the cargo loading and unloading system; An encoder for encoding the LED driving signal output from the central processing unit; An LED matrix for displaying a function being performed in a cargo loading and unloading system by emitting a corresponding LED according to the LED driving signal output from the encoder; A buzzer for driving the buzzer sound by driving the buzzer driving signal output from the central processing unit; A photo coupler for preventing noise from entering both signals when the command data output from the central processing unit is transmitted to the cargo loading and unloading system and the signal transmitted from the cargo loading and unloading system is transmitted to the central processing unit; An RS-232 driver connected to the photo coupler to transmit an output signal of the central processing unit to the cargo loading and unloading system, and a signal transmitted from the cargo loading and unloading system to the central processing unit through the photo coupler; Keyboard device for a cargo loading and unloading system of the tanker, characterized in that it comprises a reset control unit for resetting the central processing unit.