JP4784887B2 - Ship-to-shore base communication system - Google Patents

Description

  The present invention relates to a ship-to-land base communication system that enables low-cost communication from a navigating ship to a land-based communication base.

Conventionally, when communicating from a marine vessel to a land-based communication base, when the vessel is navigating near the coast, normal wireless communication facilities can adequately cover it, but the sea area far from the coast However, there is a problem in that the communication cost is greatly increased because it only relies on a communication system using a satellite.
JP 2001-211111 A

  The present invention relays the communication equipment of other ships that are navigating the sea area closer to the coast than the own ship when transmitting to the land communication base in a ship navigating the sea area far from the coast. It is an object of the present invention to provide a ship-to-land base communication system capable of communicating with a land base at a lower cost and more efficiently than using a communication satellite. To do.

The ship-to-shore base station communication system of the present invention is a land-based communication base from one ship as one of a plurality of ships navigating offshore to another ship navigating on the sea closer to the land than the ship. and to perform the transmission reception of a particular signal by the communication radio wave of a specific frequency, to the communication wave transceiver equipment provided in each of the plurality of vessels, the land side of the ship on the route of the communication tree the specific signal An automatic transmission function having a transmission direction selection means for transmitting toward the transmission is added, and the transmission / reception equipment for communication is the same as the specific signal amplifier to automatically amplify and transmit the received specific signal. A specific signal transmitter connected to an amplifier, and the specific signal is transmitted in advance between the communication base and the own ship via the communication transmission / reception equipment of another ship. Via the reverse route of the communication tree sent and received It is characterized in that it is set to be received.

  In the ship-to-shore base station communication system of the present invention, when transmitting from a ship navigating far away from the coast to a land-based communication base, a transmitter for a specific signal in a communication transmission / reception facility of the ship's own ship When a specific signal is transmitted using a radio wave for communication at a specific frequency using the, the transmission / reception for communication using the radio wave for communication at the specific frequency is also transmitted to other ships navigating the sea area between the ship and the land. Because it is equipped with wave equipment, the radio waves for communication of the specific frequency received by the specific signal receiver on other ships are automatically amplified by the amplifier and automatically transmitted via the specific signal transmitter. In this way, the other ship automatically exhibits a function as a relay base for communication to a land-based communication base. Therefore, it is possible to communicate from a ship in a remote sea area to a land-based communication base at a very low cost and efficiently without using a communication satellite.

  Further, as the other ship, a plurality of other ships may intervene, whereby a specific signal amplifier in each communication transmission / reception facility of the plurality of other ships also from a ship far away from the land. In addition, the specific signal transmitter is sequentially used to access the land communication base accurately.

  Further, if the transmitter for specific signal is provided with a transmission direction selection means so that the specific signal received by the transmission / reception facility for communication can be automatically transmitted only to the land side, the specific signal is first transmitted. The transmission and reception facilities for communication of multiple other ships that intervene only in the sea area between the ship that transmitted to the land and the land communication base will be automatically and efficiently used as a relay means in sequence, and land communication from a remote sea area Transmission to the base is performed more appropriately.

  Furthermore, the specific signal is transmitted via the reverse route of the communication tree that has been transmitted in advance from the onshore communication base to the communication transmission / reception equipment of the own ship via the communication transmission / reception equipment of the other ship. As a result, it is possible to efficiently transmit from a ship navigating offshore to a land-based communication base using an existing communication system on land, compared to using an artificial satellite. Communication costs can be significantly reduced.

  1 and 2 show a ship-to-shore base station communication system according to a first embodiment of the present invention. FIG. 1 is a plan view showing a state of use of the ship. FIG. 2 is a transmission / reception equipment for communication equipped in the ship. It is a block diagram which shows the structure of these.

  As shown in FIG. 1, in order for the vessels A and B navigating along the coast G to cooperate and transmit from the far offshore vessel A to the terrestrial communication base K, each vessel A and B A communication transmission / reception facility 1 using a specific signal shown in FIG. 2 is added to the communication facility.

That is, the transmission / reception equipment 1 for communication can be transmitted from the ship A far from the coast G among the plurality of ships A and B offshore to the communication base K on the land via the other ship B. When a specific signal based on a communication radio wave having a specific frequency is received by the specific signal receiver 3 via the reception antenna 2, the specific signal is automatically amplified by the amplifier 4 and is then transmitted to the specific signal. The transmitter 5 is configured to transmit from the transmitting antenna 6.
In addition, the input of the communication content in the transmission / reception equipment 1 for communication is performed by the method similar to the past using the computer system which is not shown in figure.

  In the ship-to-shore base communication system of the first embodiment described above, when transmitting from the ship A navigating the sea far away from the coast G to the land communication base K, the ship's communication transmission / reception equipment 1 is transmitted to the other ship B that is navigating the sea area between the ship A and the land. Since the communication transmission / reception equipment 1 using the communication radio wave of the frequency is equipped, the communication radio wave of the specific frequency received by the other signal ship 3 by the specific signal receiver 3 is automatically amplified by the amplifier 4. Thus, it is automatically transmitted from the transmitting antenna 6 via the specific signal transmitter 5, and thus the function of the other ship B as a relay base for communication to the on-shore communication base K is achieved. It will come out automatically. Therefore, communication from the ship A in the remote sea area to the on-shore communication base K can be performed extremely inexpensively and efficiently without using satellite communication.

  Further, as the other ship B, a plurality of other ships may intervene, so that a specific signal in each communication transmission / reception facility 1 of the plurality of other ships B can be obtained from a ship far away from the land. The amplifier 4 and the specific signal transmitter 5 are sequentially used to access the land communication base K accurately.

  3 and 4 show a ship-to-shore base station communication system as a second embodiment of the present invention, FIG. 3 is a plan view showing the state of use thereof, and FIG. 4 is a transmission / reception equipment for communication equipped in the ship. It is a block diagram which shows the structure of these.

  As shown in FIG. 3, when there are a large number of ships A to D that navigate along the coast G, a communication satellite is used for transmission from the ship A far from the coast G to the terrestrial communication base K. As shown in FIG. 4, a communication transmission / reception facility 1a using a specific signal having a specific frequency is added to the communication facilities of the vessels A to D so that the communication can be performed at low cost.

  This transmission / reception equipment 1a for communication is a receiving antenna so that it can transmit to the land-based communication base K via the other ships B-D also from the ship A far from the coast G among many ships on the ocean. 2, when the receiver 3 receives a specific signal from a communication radio wave having a specific frequency, the specific signal is automatically amplified by the amplifier 4 and is transmitted from the transmitting antenna 6 a via the specific signal transmitter 5. In this embodiment, the transmission direction selection means 7 is provided between the specific signal transmitter 5 and the antenna 6a so that the specific signal can be automatically transmitted only to the land side. The antenna 6a is also directional.

  In the above-mentioned ship-to-shore base station communication system according to the second embodiment, when transmitting from the ship A navigating in the sea far away from the coast G to the land-based communication base K, the transmission / reception for own ship A is performed. When the specific signal is transmitted by using the specific signal transmitter 5 in the facility 1a, the other ships B to D navigating the sea area between the ship A and the land Are equipped with a communication transmission / reception facility 1a that uses the communication wave of the specific frequency, the communication wave of the specific frequency received by the specific signal receiver 3 in the other ships BD is automatically transmitted. The signal is amplified by the amplifier 4 and automatically transmitted from the transmitting antenna 6a via the specific signal transmitter 5. At this time, the specific signal transmitter 5 receives the signal at the communication transmitting / receiving facility 1a. Automatically send a specific signal to the land side only Since the transmission direction selection means 7 is provided so as to be able to perform transmission / reception for each of a plurality of other ships B to D intervening only in the sea area between the ship A that has transmitted the specific signal first and the land communication base K. The wave equipment 1a is sequentially and efficiently automatically used as a relay means, and transmission from the ship A in the remote sea area to the land communication base K is performed more appropriately and efficiently.

  FIGS. 5 and 6 show a ship-to-land base communication system as a third embodiment of the present invention, FIG. 5 is a plan view showing a use state thereof, and FIG. 6 is a transmission / reception equipment for communication equipped in the ship. It is a block diagram which shows the structure of these.

  As shown in FIG. 5, in the case of the present embodiment, the ships A to D that navigate along the coast G also cooperate to transmit from the remote ship A to the host computer HC on land. In the present embodiment, communication is performed particularly via the land-based Internet base station IK.

Each ship A-D is equipped with the communication equipment shown in FIG. 6, and when a transmission is performed from the Internet base station IK on the land as shown in FIG. When the signal (see FIG. 6) including the number of hops H and the unique ID of the communication equipment (the unique number of the communication device) reaches the ship A while branching as shown in FIG. 5 to form a communication tree, On the contrary, transmission from the ship A to the land host computer HC becomes possible.

  That is, transmission from the ship A to the host computer HC via the Internet base station IK can be performed via the reverse route of the communication tree. The transmission from the ship A can be efficiently performed toward the coast G through the transmission direction selection means shown in FIG.

It is a top view which shows the use condition of the land base communication system in the ship as Example 1 of this invention. It is a block diagram which shows typically the anti-shore base station communication system of the ship of FIG. It is a top view which shows the use condition of the land base communication system in the ship as Example 2 of this invention. FIG. 4 is a block diagram schematically showing the ship-to-shore base communication system of FIG. 3. It is a top view which shows the use condition of the land base communication system in the ship as Example 3 of this invention. FIG. 6 is a block diagram schematically showing the ship-to-shore base communication system of FIG. 5.

DESCRIPTION OF SYMBOLS 1,1a Communication transmission / reception equipment 2 Reception antenna 3 Specific signal receiver 4 Amplifier 5 Specific signal transmitter 6 Transmission antenna 6a Directional transmission antenna 7 Transmission direction selection means A Own ship BD Other ship G Coastal HC host computer K Land communication base IK Internet base station

Claims (1)

Sending a specific signal from an on-shore communication base and a radio wave for communication at a specific frequency from one ship among a plurality of ships navigating offshore to another ship navigating on the ocean closer to the land than the own ship to perform the reception, automatic for the communication wave transceiver equipment provided in each of the plurality of vessels, having a transmission direction selection means for submitting towards the land side of the ship on the route of the communication tree the specific signal A transmission function is added, and the transmission / reception facility for communication includes a specific signal amplifier and a specific signal transmitter connected to the amplifier in order to automatically amplify and transmit the received specific signal. The specific signal passes through the reverse route of the communication tree transmitted and received in advance between the communication base and the own ship via the communication transmission / reception equipment of the other ship to the communication receiving equipment of the own ship. JP that has been set to be transmitted and received Te To, pairs of vessels terrestrial base communication system.

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