KR101408538B1 - Server push messaging system in the ip-based vessel satellite communications - Google Patents

Abstract

The present invention relates to a server message push system enabling a user to automatically and rapidly receive a message from a land server without a random communication connection to the land server. According to the present invention, it is possible to concurrently transmit urgent messages en bloc to many designated ships through a push message automation function under restricted marine satellite communication environments such as highly expensive charges of satellite communications, faults in the satellite communications, and manual connections to the satellite communications and in distinct environmental conditions fraught with a lot of danger in sea navigation. Therefore, time and costs can be reduced by replacement of information delivery means and a means for easily delivering certain information to a specific user as well as for delivering the information to multiple users en block without repetition can be provided. Accordingly, work efficiency can be improved and communication expenses can be reduced since the server message push system can replace an existing marine satellite voice call for the information delivery and an email function requiring the manual connections.

Description

TECHNICAL FIELD [0001] The present invention relates to a server message push system in an Internet protocol based ship satellite communication,

The present invention relates to a server message push system in an Internet Protocol (hereinafter referred to as 'IP') based ship satellite communication in which a user can automatically receive messages automatically from a land server even if the user does not have any communication connection to the land server will be.

In general, the push system is provided by push (PUSH) method in which a user continuously selects and receives a channel when a station continuously transmits data, such as a television, and a push method in which a user frequently accesses and requests information, (PULL) method.

The push system in the present invention refers to a method in which a server forcibly transmits data and receives the data automatically without a request from the user. This is the fastest and most convenient way of communicating information in a group with a specific purpose.

Especially, in the case of ships sailing in the sea, there are special environmental conditions with many risks, and the delays of the sailing schedule are directly connected with the financial loss, so that information such as incidents, accidents, , Navigation reports, etc., are important.

However, despite the high convenience and efficiency of the push message, due to the technical conditions of continuous communication connection with the push system server, the ship has to pay for expensive satellite communication charges, disconnect the satellite communication, The corresponding function could not be used due to the need for communication connection.

Method for restricting message reception of push message service (Patent Application No. 10-2004-0061180)

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above problems, and it is an object of the present invention to provide a system in which a user can automatically receive a message automatically from a terrestrial server without a communication connection to a terrestrial server.

According to an aspect of the present invention,

The ship client is responsible for the connection control of the satellite communication session and accesses the TELNET control service provided by the satellite terminal to perform the function through AT command transmission. After accessing the telnet control service, And transmits a satellite earth station access command to access the satellite earth station to receive the IP address to establish a satellite communication session. Through this, the ship communication module 102 transmits the satellite earth station access command to the land communication module 106 using the TCP / IP protocol A satellite terminal control unit (101) which performs a function for enabling a connection to be made possible;

After the satellite communication session is connected through the satellite terminal control unit 101, a communication connection is made to the land communication module 106 using the TCP / IP protocol, and a function of transmitting and receiving push and general message data A ship communication module 102;

The connection status is checked periodically by HEART BEAT transmission in order to continue the connection between the ship communication module 102 and the land communication module 106. When the satellite communication session is disconnected, A ship communication session management unit 103 for connecting a satellite communication session and performing a reconnection through the ship communication module 102 when the TCP / IP protocol connection with the land communication module 106 is disconnected;

A ship message management unit 104 for storing a message received from the land server through the ship communication module 102 and transmitting the message to the user interface unit 105 so that the user can confirm the message; And

A user interface unit 105 for displaying a message received from the ship message management unit 104 to a user;

A ship client,

Which performs a communication session when a connection request is made from the ship communication module 102 through the TCP / IP server function, and transmits the message data to the ship client or receives message data from the ship client on the contrary, A communication module 106;

When a push message is generated or an unprocessed push message exists, the control unit 106 checks the session state of the ship client through the land communication session managing unit 108, determines whether or not the connection is established, and transmits the push message to the land communication module 106 A push message processing unit 107;

And controls the connection status by periodically checking the connection status of the ship client connected to the land communication module 106. When the push message processor 107 requests the information of the ship client connected by the push message processor 107 A land communication session management unit (108) that returns a connection status result for the request; And

When the message is newly created, it is determined whether the push message should be urgently transmitted to the ship client. If the push message type is the push message type, the message is transmitted to the land push message processing unit 107 to deliver the message to the connected ship client in real time A land-land message managing unit 109;

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Provides a server message push system in Internet protocol based ship satellite communications.

According to the present invention, it is possible to provide an urgent communication system in which the push message automation function is used in a special environment condition where there is a great risk for navigating the marine environment such as constrained ship satellite communication environment such as burden on expensive satellite communication charges, By simultaneously transmitting the message to a plurality of designated vessels at once, it is possible to save time and expense due to the substitution of the information transmission means, not only to transmit information to a plurality of users at the same time without repetition but also to easily transmit arbitrary information to a specific user It is possible to substitute the existing information on the ship-to-ship voice call and the passive-access e-mail function on the receiver side, thereby improving the efficiency of the work and reducing the satellite communication cost.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram illustrating a configuration module at a ship client and a land server side in a push message system according to the present invention; FIG.
2 is a flow diagram illustrating a processing method for accessing a shore server from a ship client in a push message system in accordance with the present invention;
3 is a flow chart illustrating a communication connection control processing method of an IP-based satellite terminal in a push system according to the present invention.
4 is a flowchart illustrating a push message processing method in a land server in a push message system according to the present invention;

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The present invention relates to a server message push system in Internet protocol based ship satellite communications, in which a user can receive messages automatically from a land server without having to optionally access a land server. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram illustrating a configuration module on a ship client side and a land server side in a push message system according to the present invention.

As shown in FIG. 1, the push message system according to the present invention is divided into a ship client and a land server.

First, the ship client will be described. The ship client includes a satellite terminal control unit 101, a ship communication module 102, a ship communication session management unit 103, a ship message management unit 104, and a user interface unit 105. Hereinafter, functions and functions of the respective components will be described.

The satellite terminal control unit 101 performs satellite communication session connection control in the ship client and accesses a telnet control service provided by the satellite terminal to perform a function through AT command transmission. After accessing the telnet control service, the environment setting is performed through the initialization command, the satellite earth station access command is transmitted, the satellite earth station is connected to the satellite earth station, and the satellite communication session is established by receiving the IP. And performs a function for allowing the ship communication module 102 to access the land communication module 106 using a TCP / IP protocol.

The ship communication module 102 performs a communication connection to the land communication module 106 using the TCP / IP protocol after the satellite communication session is connected through the satellite terminal control unit 101. After the connection, And the like.

The ship communication session management unit 103 periodically checks the connection status through HEART BEAT transmission to continue the connection between the ship communication module 102 and the land communication module 106, And connects the satellite communication session through the session management unit 103 and reconnects via the ship communication module 102 when the TCP / IP protocol connection with the land communication module 106 is broken.

The ship message management unit 104 stores a message received from the on-shore server through the ship communication module 102 and transmits the message to the user interface unit 105 so that the user can confirm the message.

The user interface unit 105 displays a message received from the ship message management unit 104 to the user.

Next, the land server will be described. The land server comprises a land communication module 106, a push message processing unit 107, a land communication session management unit 108, and a land land message management unit 109. Hereinafter, functions and functions of the respective components will be described.

The land communication module 106 establishes a communication session when there is a connection request from the ship communication module 102 through the TCP / IP server function, transmits the message data to the ship client, or receives message data from the ship client And performs the receiving function.

The push message processing unit 107 checks the session state of the ship client through the land communication session management unit 108 when the push message is generated or when there is an unprocessed push message, And the like.

The land communication session managing unit 108 periodically checks the connection state of the ship client connected to the land communication module 106 to manage the connection state. According to the function, the land communication session management unit 108 returns a connection state result for the request when the push message processing unit 107 requests information of the connected ship client.

When the message is newly generated, the land-surface message management unit 109 determines whether the push message should be urgently transmitted to the ship client. If the push message type is the push-type message management unit 109, .

FIG. 2 is a flowchart illustrating a processing method for connecting from a ship client to a land server in a push message system according to the present invention.

In order to push the message from the land server to the ship client, a TCP / IP communication session must be established between the land server and the ship client. The IP-based satellite terminal transmits the IP (Digital Signature Protocol) The land server can not know the IP of the ship client, and the satellite connection is immediately released after data transmission / reception, so that the land server can not access the ship client.

Therefore, in order to send a push message from the land server to the ship client, the ship client must first make a request for connection, and periodically check the connection status and reconnect when the connection is broken. This process is described in detail as follows.

First, the ship client checks whether the push function is enabled or not (120). If the corresponding function is activated, the IP-based satellite terminal checks whether the IP-based satellite terminal is online and connected to the land server (121).

If it is not in the on-line state, the satellite terminal is controlled (122) through the satellite terminal control unit (101) to attempt a communication session connection with the earth earth station (123). Upon connection with the land server, the land communication session management unit 108 updates the connection state of the ship client using the connected ship user ID (124). In order to maintain the connection state, the terrestrial communication session management unit 108 periodically sends a HEART BEAT to the ship client to check whether the communication connection is continued (125). Whenever a push message occurs on the land server, the connection state is maintained (126) for delivery to the ship client at any time.

3 is a flowchart illustrating a communication connection control processing method of an IP-based satellite terminal in a push system according to the present invention.

However, the IP-based satellite terminal according to the present invention is limited to INMARSAT's FBB (FleetBroadband) compatible equipment which requires a passive connection function. The ATC commands defined by JRC, THRANE and INSARAT Limited to compatible products. In addition, VSAT equipment among IP-based satellite terminals does not need a communication connection control processing method according to FIG. 3 because it keeps the communication session always connected like the Internet terminal on the land.

The above function is to perform a communication connection 122 with a satellite earth station through the satellite terminal control unit 101 of FIG. 1, and it is possible to control a satellite terminal requiring a manual connection connection by S / W, To connect to the land server. A processing method of the satellite terminal control unit 101 is as follows.

First, a telnet connection is attempted (210) to the control service mounted on the satellite terminal to confirm the manufacturer of the satellite terminal. At this time, JRC's terminal connection IP is 192.168.128.100, PORT uses 1829, THRANE's terminal connection IP is 192.168.0.1, and PORT is 5454. Based on the manufacturer's connection IP and port information, confirm whether the telnet connection is possible (211) and confirm the terminal manufacturer.

If telnet is not connected to the control service installed in the satellite terminal, it is determined that it is not a compatible device or it is determined to be an error, and the process ends.

When telnet is connected to the control service installed in the satellite terminal, the AT command is transmitted to set the PDP CONTEXT.

The terminal of the JRC company transmits "AT + CGDCONT = 1, IP, KT.BGAN.INMARSAT.COM, 0.0.0.0, 0,1 ,,", and THRANE terminal transmits "AT + CGDCONT = 1, IP, KT. BGAN.INMARSAT.COM ,, 0,0 "is transmitted to check whether an OK value is returned (212).

If the OK value is not returned (213), it is determined as an error, and if the OK value is returned, an AT command ("AT + CGACT = 1,1 ") is transmitted to the satellite terminal for connection with the satellite earth station ). At this time, if the OK value is returned, it is determined that the communication session connection is established, and if it is not returned, it is determined as an error and the process is terminated (215).

In this case, when determining whether or not the OK value is returned as a result of the AT command, the return value may not be immediately transferred because of the nature of telnet, and may be transmitted after a predetermined time. It is necessary to arrange the transmission command and the return value in a time order so as to be matched.

4 is a flowchart illustrating a push message processing method in a land server in a push message system according to the present invention. This process is described in detail as follows.

First, when a new message is generated, the terrestrial message management unit 109 checks the TAG value of the corresponding message and stores the message together with the push message existence information in the transmission wait table of the DB (310).

At this time, if it is confirmed as an urgent message, it is regarded as a push message, and in order to check whether the receiving ship client is connected to the land communication module 106 of FIG. 1, the receiving object ship ID value is extracted from the message, 108, and confirms whether the result is to be delivered immediately (311).

If it is determined that the communication session of the ship client is connected in the land communication session management unit 108 of FIG. 1, the push message is immediately transmitted to the ship client.

The land-area message management unit 109 of FIG. 1 periodically checks whether there is an untransmitted push message stored in the standby transmission table of the DB (312). If it does not exist, it checks again in the next cycle. However, if there is a WASTE transmission push message that can not be transmitted to the ship client, the ship ID value of the receiving ship is extracted from the corresponding message (314).

Then, the extracted ship ID value is transmitted to the land communication session management unit 108 of FIG. 1 to check whether the ship client is currently connected (315).

If the ship client is not connected to the land communication module 106, the process is canceled. If the ship client is connected, the message is pushed through the TCP / IP protocol in the communication session of the connected ship client, and the message is transmitted (317).

The description of the embodiment of the present invention has been completed above. As described above, conventionally, when a message is required to be transmitted from a ship, 1) the ship periodically receives a message after establishing a communication connection with an on-land server via IP-based satellite several times a day, or 2) And a satellite phone is used to request a communication connection.

As a result, satellite data communication cost and satellite phone cost due to unnecessary connection occurred, and the ship was unable to receive urgent message needed in time, resulting in inconvenience to work.

However, when the present invention is used, a user can quickly receive a message automatically from a land server without arbitrarily connecting to a land server.

Accordingly, it is possible to transmit an urgent message (weather information, navigation information, sailing schedule, navigation report, incident, accident information, maritime risk information, etc.) to a ship in real time , It is possible to prevent various risks and accidents of the ship and to receive the emergency specials necessary for the work immediately, thereby improving the efficiency of the work. It also has the effect of reducing communication costs incurred in attempting to establish multiple satellite communications connections to identify new messages on the shore.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and accompanying drawings. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

101: satellite terminal control unit 102: ship communication module
103: Ship communication session management unit 104: Ship message management unit
105: user interface unit 106: terrestrial communication module
107: push message processing unit 108:
109: Terrestrial message manager

Claims (1)

The ship client is responsible for the connection control of the satellite communication session and accesses the TELNET control service provided by the satellite terminal to perform the function through AT command transmission. After accessing the telnet control service, And transmits a satellite earth station access command to access the satellite earth station to receive the IP address to establish a satellite communication session. Through this, the ship communication module 102 transmits the satellite earth station access command to the land communication module 106 using the TCP / IP protocol A satellite terminal control unit (101) which performs a function for enabling a connection to be made possible;
After the satellite communication session is connected through the satellite terminal control unit 101, a communication connection is made to the land communication module 106 using the TCP / IP protocol, and a function of transmitting and receiving push and general message data A ship communication module 102;
The connection status is checked periodically by HEART BEAT transmission in order to continue the connection between the ship communication module 102 and the land communication module 106. When the satellite communication session is disconnected, A ship communication session management unit 103 for connecting a satellite communication session and performing a reconnection through the ship communication module 102 when the TCP / IP protocol connection with the land communication module 106 is disconnected;
A ship message management unit 104 for storing a message received from the land server through the ship communication module 102 and transmitting the message to the user interface unit 105 so that the user can confirm the message; And
A user interface unit 105 for displaying a message received from the ship message management unit 104 to a user;
A ship client,
Which performs a communication session when a connection request is made from the ship communication module 102 through the TCP / IP server function, and transmits the message data to the ship client or receives message data from the ship client on the contrary, A communication module 106;
When a push message is generated or an unprocessed push message exists, the control unit 106 checks the session state of the ship client through the land communication session managing unit 108, determines whether or not the connection is established, and transmits the push message to the land communication module 106 A push message processing unit 107;
And controls the connection status by periodically checking the connection status of the ship client connected to the land communication module 106. When the push message processor 107 requests the information of the ship client connected by the push message processor 107 A land communication session management unit (108) that returns a connection status result for the request; And
When the message is newly created, it is determined whether the push message should be urgently transmitted to the ship client. If the push message type is the push message type, the message is transmitted to the land push message processing unit 107 to deliver the message to the connected ship client in real time A land-land message managing unit 109;
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Server Message Push System in Internet Protocol Based Ship Satellite Communication.

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