JP4003696B2 - Sea area violation warning method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a marine invasion warning method for detecting that a navigation object moving in the sea or on the sea has entered a warning sea area and sending a warning.
[0002]
[Prior art]
As a method for accurately measuring the position of a navigation object that moves in the sea or on the sea, for example, as disclosed in Patent Document 1, a pinger signal is transmitted from the navigation object, and a plurality of measurement buoy stations generate a pinger signal. Is known, and the position of the navigation body is specified by transmitting data from the measurement buoy station to the measurement device on the ship.
However, this method does not function unless a pinger signal required for position measurement is transmitted from the navigation body, and the position of an unspecified number of navigation bodies with no specification limitation cannot be specified.
[0003]
For example, as disclosed in Patent Document 2, a plurality of sonars are installed on the seabed to identify the relative position of the navigation object with respect to the sonar, as a system suitable for sea area monitoring and warning of the sea invasion to the navigation object. Systems are known in which an alarm installed in a buoy is activated after confirming that the navigation body has approached the sonar to some extent.
However, since this system is to identify the position of the navigation body based on the position of the sonar until it gets tired, it is necessary to install the sonar to detect the intrusion of the navigation body into a specific sea area and activate the alarm. It must be done accurately, and if the sonar is washed away by ocean currents, there is a possibility that an appropriate warning cannot be given.
[0004]
As an acoustic measurement buoy for removing the error due to the flow of the buoy and accurately specifying the position of the navigation body, for example, as disclosed in Patent Document 3, an absolute position detection means is built in the buoy, The current position of the buoy detected by the absolute position detection means and the measurement data by the sonar are transferred to a processing device installed in an aircraft or a ship, and the position of the navigation body is specified by performing arithmetic processing with this processing device. Is known.
However, this does not have the technical idea of activating an alarm attached to the buoy, and in the first place, the position of the navigation body is revealed only by the arithmetic processing performed by the processing device installed in the aircraft or ship. Because the buoy's internal device does not have a function to detect the position of the navigation body, even if an alarm device as disclosed in Patent Document 2 is attached to this acoustic measurement buoy, the alarm device warns the sea area. I can't do it.
[0005]
Further, the conventional alarm device disclosed in Patent Document 2 is merely constituted by a simple siren or a buzzer, and even if it outputs an alarm, it means that to the crew of the navigation body. It was difficult to warn the contents appropriately.
[0006]
[Patent Document 1]
JP-A-8-61952 (paragraph number 0029)
[Patent Document 2]
JP-A-8-40355 (paragraph number 0013)
[Patent Document 3]
JP-A-8-15427 (paragraph 0009)
[0007]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to eliminate the drawbacks of the prior art, so that it is not always necessary to accurately install the sonar, and there is no limitation on the specifications even when the sonar is swept away by ocean currents or the like. It is possible to detect the position of a specific number of navigational objects appropriately, and when the navigational object has entered the alert sea area, it will appropriately warn the crew of the navigation object to enter the alert area. It is to provide a sea area invasion warning method.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention Mechanical sound and While distributing a buoy having a sonar for detecting a relative position, an absolute position detecting means for specifying the current position of the sonar, a speaker for outputting a warning message, and a transmitting / receiving means for transmitting / receiving data to the sea ,
The base station moving in the air includes transmission / reception means for transmitting / receiving data, Correspondence between mechanical sound characteristics and language for each type of navigation body, voice data of warning message for each language, and Deploy information processing means to memorize the alert sea area,
Of the navigation object detected by the sonar Mechanical sound and Transmitting the relative position and the current position of the sonar specified by the absolute position detecting means to the transmitting / receiving means of the base station via the transmitting / receiving means of the buoy;
After the information processing means of the base station identifies the current position of the navigation object based on the relative position of the navigation object with respect to the sonar and the current position of the sonar, the warning area and the navigation object stored in advance in the information processing means The current position is compared with the current position to determine whether or not the navigation object has entered the alert sea area, and stored only in advance in the information processing means only when the navigation object has entered the alert sea area. A language corresponding to the type of the navigation body having characteristics similar to the characteristics of the mechanical sound of the navigation body by comparing the characteristics of the mechanical sound of the navigation body and the mechanical sound characteristics of the navigation body, Remembered for this language Send the voice data of the warning message to the buoy transmission / reception means via the transmission / reception means of the base station,
The voice data of the warning message is reproduced by the buoy speaker.
[0009]
In the above configuration When the navigation body navigates in the vicinity of the buoy distributed on the sea, the sonar deployed in the buoy detects the relative position of the navigation body with respect to the sonar. In addition, the absolute position detection means provided on the buoy constantly monitors the current position of the sonar as an absolute position, and this current position is the relative position of the navigation object relative to the sonar. And mechanical sound of the navigation body At the same time, it is transmitted to the transmitting / receiving means of the base station moving in the air via the transmitting / receiving means of the buoy.
The information processing means of the base station specifies the current position of the navigation object based on the relative position of the navigation object and the current position of the sonar input via the transmission / reception means of the base station, and further stores in advance in the information processing means. It is determined whether or not the navigation object has entered the warning area by comparing the warning area and the current position of the navigation object.
When it is determined that the navigation body has entered the alert sea area, Compares the characteristic of the mechanical sound for each type of navigation object stored in advance in the information processing means with the characteristic of the mechanical sound of the navigation object input via the transmission / reception means of the base station, and transmits / receives the base station The language corresponding to the type of the navigation object having characteristics similar to the characteristics of the mechanical sound of the navigation object input via the is specified and stored corresponding to this language. Audio data for warning messages The Send to buoy transceiver via base station transceiver Do .
The voice data of the transmitted warning message is received by the buoy transmission / reception means and reproduced by a speaker arranged in the buoy, and means a warning message consisting of a voice indicating an intrusion into a warning sea area, that is, using a language. The voice made is notified to the crew of the navigation body.
Since the current position of the navigation object is obtained by combining the absolute position of the sonar detected by the absolute position detection means and the relative position of the navigation object based on the sonar position, the distribution position of the sonar is inaccurate. In this case, or even when the sonar is swept away by an ocean current or the like, the absolute position of the navigation body can be detected appropriately.
In addition, since the relative position of the navigational object is detected using sonar, the position of an unspecified number of navigational objects that are not limited in specifications is specified accurately, not limited to a specific navigational object that transmits a pinger signal, etc. It is possible to determine whether or not there is an intrusion into the alert sea area.
In addition, warnings for intrusion into the alert sea area are made with warning messages consisting of voices indicating the intrusion into the alert sea area, that is, voices that make sense using language, so sirens or buzzers are used as warning means. Unlike the case, the contents of the warning can be appropriately notified to the crew of the navigation body.
In particular, the voice data of the warning message may be stored in the information processing means in the language of the country that uses or owns the ship type, corresponding to the machine sound for each type of navigation body, that is, the element that specifies the ship type. Therefore, warnings for intrusion into the alert sea area can be made with warning messages in a language that can be easily understood by the crew of the navigation body, and the contents of the warning are reliably notified to the crew of the navigation body, etc. It becomes possible .
[0016]
More Information for storing transmission / reception means for transmitting / receiving data to / from the ground base station, correspondence between mechanical sound characteristics and languages for each type of navigation object, voice data of warning messages and warning areas for each language A processing means,
The mechanical sound and relative position of the navigation object detected by the buoy sonar and the current position of the sonar identified by the buoy absolute position detecting means are transmitted to the transmitting / receiving means of the base station via the buoy transmitting / receiving means and the communication satellite. Send
After the information processing means of the base station identifies the current position of the navigation object based on the relative position of the navigation object with respect to the sonar and the current position of the sonar, the warning sea area and the current position of the navigation object stored in advance in the information processing means To determine whether or not the navigation object has entered the alert area, and only when the navigation object has entered the alert area, the machine for each type of navigation object stored in advance in the information processing means Compare the sound characteristics with the mechanical sound characteristics of the navigation body, identify the language corresponding to the type of navigation body having characteristics similar to the mechanical sound characteristics of the navigation body, and The stored voice data of the warning message is transmitted to the buoy transmission / reception means via the transmission / reception means of the base station and the communication satellite,
A configuration is proposed in which sound data of a warning message is reproduced by a buoy speaker.
[0017]
When such a configuration is applied, the information processing means only needs to be installed at the ground base station, and the base station is easy to set up compared to the case where transmission / reception means and information processing means are installed in an existing aircraft. In addition, it is not necessary to install special information processing means on the artificial satellite, and the communication satellite is merely used as a data transmission relay point, so that there is no cost problem.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the sea area breach warning method of the present invention will be described with reference to the drawings.
[0023]
FIG. 1 is a conceptual diagram showing an example of a system required when applying the marine invasion warning method of the present invention.
[0024]
As shown in FIG. 1, the sea area invasion warning system 1 according to the present embodiment includes an aircraft 2 functioning as a base station moving in the air and a buoy 3 distributed on the sea by the aircraft 2 or other aircraft. It is comprised by.
[0025]
Among these, the buoy 3 includes a buoy main body 4, a cable 5 and a sonar 6, and a speaker 7 that functions in water.
These components are integrated before dropping, and the cable 5 is automatically pulled out when the buoy 3 lands, and the sonar 6 and the speaker 7 are suspended at the tip. ing.
[0026]
As shown in the functional block diagram of FIG. 2, a GPS receiver 8 that functions as an absolute position detection unit and a transmission / reception circuit 9 that functions as a main part of the transmission / reception unit 27 are arranged inside the buoy body 4. The transmitting / receiving antenna 10 which is a part of the means 27 protrudes from the top of the buoy body 4 into the air.
[0027]
The CPU 11 in the buoy main body 4 is for driving and controlling various devices and electrical components arranged in the buoy 3. The bus 12 of the CPU 11 is loaded with a control program necessary for driving control of the CPU 11. A stored ROM 13 is connected to a RAM 14 used for temporary storage of data, and an input / output circuit 15 is further provided.
[0028]
The input / output circuit 15 is connected to the GPS receiver 8 and the transmitter / receiver circuit 9 of the transmitter / receiver 27. The current position of the buoy body 4 detected by the GPS receiver 8, that is, the actual current position of the sonar 6 (absolute Position) is read into the CPU 11 via the input / output circuit 15.
[0029]
The data received by the transmission / reception antenna 10 and the transmission / reception circuit 9 is read into the CPU 11 via the input / output circuit 15, and the data that needs to be transmitted from the CPU 11 side is the input / output circuit 15, the transmission / reception circuit 9, and the transmission / reception antenna. 10 to be transmitted to the outside.
[0030]
Further, drivers 16 and 17 are connected to the input / output circuit 15, and the sonar 6 and the speaker 7 are driven and controlled by the CPU 11 via the input / output circuit 15 and the drivers 16 and 17.
[0031]
As the sonar 6, either a passive sonar or an active sonar may be used, but a sonar 6 having a listening function for detecting a mechanical sound of a navigation body such as a submarine is used.
The mechanical sound of the navigation body heard by the sonar 6 is read into the CPU 11 via the driver 16 and the input / output circuit 15.
[0032]
FIG. 3 is a functional block diagram showing an outline of the configuration of the transmission / reception means 18 and the information processing means 19 provided in the aircraft 2.
[0033]
The transmission / reception means 18 for transmitting / receiving data is constituted by a transmission / reception antenna 20 and a transmission / reception circuit 21, and the information processing means 19 is constituted by a normal computer system.
[0034]
The information processing means 19 includes at least a CPU 22 for arithmetic processing, a ROM 23 storing a control program and the like necessary for driving control of the CPU 22, and a RAM 24 used for temporary storage of data.
[0035]
Data received by the transmission / reception antenna 20 and the transmission / reception circuit 21 is read into the CPU 22 via the input / output circuit 26, and data that needs to be transmitted from the CPU 22 side is transmitted via the input / output circuit 26, the transmission / reception circuit 21, and the transmission / reception antenna 20. Sent to the outside.
[0036]
The non-volatile memory 25 is constituted by a large-capacity storage medium such as a hard disk. The non-volatile memory 25 includes preset coordinate data of a warning sea area and characteristics and language of mechanical sound for each type of navigation object. And further, voice data of a warning message for each language is stored.
[0037]
An example of data stored in the nonvolatile memory 25 will be described with reference to FIGS.
[0038]
FIG. 4 conceptually shows a frequency characteristic storage file storing mechanical sound characteristics. This frequency characteristic storage file contains mechanical sound generated from a ship among various types of existing navigation bodies, that is, ships. For those that have succeeded in sampling, the frequency of the mechanical sound is analyzed for each ship type, and the frequency distribution characteristics obtained by the analysis are stored as the mechanical sound characteristics. Therefore, the characteristic of the mechanical sound here is specifically a distribution pattern (frequency distribution characteristic) of the level of each frequency included in the mechanical sound.
4, a1, a2, a3,... Are mechanical sound characteristics, and b1, b2, b3,... Are ship type names, and these data correspond one to one.
In FIG. 4, c1, c2, c3,... Are the names of the countries that own the ship types b1, b2, b3,. The country names c1, c2, c3,... Do not always correspond one-to-one. This is because a single country may have multiple ship types.
[0039]
FIG. 5 is a use language storage file that stores the correspondence between the country name and language of the possessing country. The use language storage file stores the correspondence between the country name and the language.
5, c1, c2, c3,... Are country names, and d1, d2, d3,... Are languages, but they do not correspond one-on-one.
This is because the same language may be used even in different countries, such as the United States and the United Kingdom.
[0040]
FIG. 6 conceptually shows an audio data storage file that stores the correspondence between languages and audio data of warning messages. The audio data storage file includes Japanese, English, German,.・ Voice data of a warning message indicating an intrusion into the alert sea area is stored for each language such as.
[0041]
The structure of the data file in FIGS. 4 to 6 is just an example. The data of the ship type, the possession country, etc. are omitted, and the warning message is directly associated with the mechanical sound characteristics a1, a2, a3,. May be stored, but as described above, there may be cases where a single country has multiple ship types. As a result, the same voice data Are stored in duplicate, resulting in wasted storage capacity.
[0042]
FIG. 7 is a flowchart showing an outline of “data collection and message reproduction processing” performed by the CPU 11 provided in the buoy 3, and FIG. 8 is a “data analysis” executed by the CPU 22 provided in the information processing means 19. 5 is a flowchart showing an outline of “and message selection processing”.
[0043]
Next, the overall processing operation of the marine invasion warning system 1 of the present embodiment will be specifically described with reference to these flowcharts.
[0044]
The CPU 11 of the buoy 3 starts the “data collection and message reproduction process” of FIG. 7 when the buoy 3 is dropped on the sea surface. First, the transmission / reception means 18 mounted on the aircraft 2 by the transmission / reception means 27 of the buoy 3 It is determined whether or not the audio data is received (step A1).
If the reception of the voice data is not detected, the CPU 11 further determines whether or not the presence of the ship as a navigation body and its mechanical sound are detected by the sonar 6 equipped in the buoy 3 ( Step A2) If the presence or mechanical sound of the ship is not detected, only the determination process of Steps A1 and A2 is repeated in the same manner as described above, and the presence or mechanical sound of the ship is detected by the sonar 6. Alternatively, an initial standby state is entered in which voice data from the transmission / reception means 18 of the aircraft 2 is received.
[0045]
Here, for example, as shown in FIG. 1, when a submarine 28, which is a kind of ship, that is a kind of ship, enters the detectable range of the sonar 6, the sonar 6 detects at least its presence.
However, if the power of the submarine 28 is completely stopped, there is a possibility that the mechanical sound is not detected even if the submarine 28 can be detected.
[0046]
The CPU 11 that repeatedly executes the determination processing in steps A1 and A2 detects that the sonar 6 has detected the submarine 28 in the determination processing in step A2, and detects the relative submarine 28 detected with the sonar 6 as a reference. The current position, that is, the orientation and relative distance of the submarine 28 with respect to the sonar 6 is read (step A3), and the absolute current position of the sonar 6 detected by the GPS receiver 8 is read (step A4).
[0047]
Next, the CPU 11 determines whether or not the mechanical sound of the submarine 28 is detected by the sound function provided in the sonar 6 (step A5). If the mechanical sound is detected, the relative current position ( In addition to the azimuth and relative distance and the absolute current position of the sonar 6, the mechanical sound of the submarine 28 is transmitted to the transmission / reception means 18 of the aircraft 2 via the transmission / reception means 27 of the buoy 3 (step A6).
[0048]
If no mechanical sound is detected, the CPU 11 sends only the relative current position (azimuth and relative distance) of the submarine 28 and the absolute current position of the sonar 6 to the aircraft 2 via the transmission / reception means 27 of the buoy 3. To the transmission / reception means 18 (step A7).
[0049]
Then, the CPU 11 repeatedly executes the determination processing in steps A1 and A2 and enters a standby state in which it waits for voice data to be transmitted from the transmission / reception means 18 of the aircraft 2.
[0050]
On the other hand, in the “data analysis and message selection process” shown in FIG. 8, the CPU 22 provided in the information processing means 19 of the aircraft 2 sets the value of the message transmission flag F in the RAM 24 that stores the message being transmitted to the initial value. While repeatedly executing the determination process of whether or not the data is held at 0 (step B1) and whether or not the data from the transmission / reception means 27 of the buoy 3 is received by the transmission / reception means 18 of the aircraft 2 (step B2) , Waiting for data transmission from the transmitting / receiving means 27 of the buoy 3.
[0051]
Here, when the transmission / reception means 18 of the aircraft 2 receives the data transmission from the transmission / reception means 27 of the buoy 3, the CPU 22 detects this in the determination process of step B2, analyzes the data received by the transmission / reception means 18, and The position data and the acoustic data are separated (step B3).
The position data here refers to the relative current position (azimuth, relative distance) of the submarine 28 with respect to the sonar 6 and the absolute current position of the sonar 6 among the data sent from the transmission / reception means 27, The acoustic data is a mechanical sound of the submarine 28.
However, for the reasons described above, the mechanical sound of the submarine 28 may not be included in the data sent from the transmission / reception means 27 of the buoy 3.
[0052]
Next, the CPU 22 obtains the absolute current position of the submarine 28 based on the relative current position (azimuth and relative distance) of the submarine 28 with respect to the sonar 6 and the absolute current position of the sonar 6 (step B4). ) Compare the coordinate data of the warning sea area stored in advance in the nonvolatile memory 25 with the absolute current position of the submarine 28 to determine whether or not the submarine 28 has entered the warning sea area (step B5). ).
[0053]
Here, if it is determined that the submarine 28 has not entered the alert sea area, the CPU 22 returns to the initial standby state in which only the determination processing of steps B1 and B2 is repeated as described above. It waits for data to be transmitted from the transmitting / receiving means 27.
[0054]
On the other hand, if the determination result of step B5 is true and it is determined that the submarine 28 has entered the alert sea area, the CPU 22 includes acoustic data in the data sent from the transmission / reception means 27 of the buoy 3. (Step B6), and if acoustic data is included, frequency analysis is performed to analyze the frequency of the acoustic data, that is, the mechanical sound of the submarine 28, and express the characteristics of the mechanical sound of the submarine 28. Is obtained (step B7).
[0055]
Next, the CPU 22 searches the frequency characteristic storage file as exemplified in FIG. 4 and compares each frequency distribution characteristic stored in the frequency characteristic storage file with the frequency distribution characteristic of the mechanical sound of the submarine 28 ( Step B8), it is determined whether a frequency distribution characteristic similar to the frequency distribution characteristic of the mechanical sound of the submarine 28 is stored (Step B9).
[0056]
If similar frequency distribution characteristics are stored, the CPU 22 obtains the ship type name and possession country corresponding to the frequency distribution characteristics from the frequency characteristic storage file (see FIG. 4), and further obtains the obtained possession country. After obtaining the use language corresponding to the use language storage file (see FIG. 5), finally, the voice data of the warning message corresponding to the use language is specified in the voice data storage file (see FIG. 6), and the non-volatile The voice data of the warning message corresponding to the language used is read from the memory 25 and transmitted to the transmission / reception means 27 of the buoy 3 via the transmission / reception means 18 of the aircraft 2 (step B10), and the message transmission flag F is set. The value 1 indicating that the warning message is being transmitted is set (step B11).
[0057]
As a result of setting the value 1 to the message transmission flag F in this way, the determination result of the next step B1 to be executed is false, and thereafter, the transmission of the voice data is completed and the determination result of step B13 is true. In the meantime, the processes of steps B1, B13, and B14 are repeatedly executed, and the audio data is continuously read and transmitted.
[0058]
Then, when the transmission of the voice data is completed and the determination result in step B13 becomes true, the value of the message transmission flag F is reset to 0 (step B15), and the CPU 22 performs only the determination processing in steps B1 and B2. It returns to the initial standby state that executes repeatedly.
[0059]
On the other hand, if the determination result in step B6 or step B9 is false, that is, the acoustic data is not included in the data sent from the transmission / reception means 27 of the buoy 3, so the ship type name of the submarine 28 is specified. If it is not possible, or if the data sent from the transmission / reception means 27 of the buoy 3 contains acoustic data but no similar frequency characteristic is stored in the frequency characteristic storage file, that is, the ship of the submarine 28 In the case where the species name is unknown, the CPU 22 stores the voice data of the warning message stored in correspondence with a specified language determined in consideration of versatility, for example, the use language “English”, in a non-volatile manner. The process of reading from the memory 25 and transmitting to the transmission / reception means 27 of the buoy 3 is started (step B12), and the value 1 is set in the message transmission flag F as described above. (Step B11).
[0060]
In this case as well, the processes in steps B1, B13, and B14 are repeatedly executed in the same manner as described above, and the reading and transmission of the audio data are continuously performed. Finally, the transmission of the audio data is completed and the determination in step B13 is performed. When the result becomes true, the value of the message transmission flag F is reset to 0 (step B15), and the CPU 22 returns to the initial standby state in which only the determination process of steps B1 and B2 is repeatedly executed. .
[0061]
When transmission of message data from the transmission / reception means 18 of the aircraft 2 is started in this way, the transmission / reception means 27 of the buoy 3 receives the message data.
[0062]
Then, in the “data collection and message reproduction process” shown in FIG. 7, the CPU 11 waiting for reception of audio data while repeatedly executing the determination process of steps A1 and A2 detects this in the determination process of step A1, The voice data received by the transmission / reception means 27 is output to the speaker 7 via the driver 17 and sent to the sea as a warning message consisting of voice (steps A1 and A8).
[0063]
Finally, when the reception and reproduction of the voice data constituting the series of messages are all finished and the transmission of the message data from the transmission / reception means 18 of the aircraft 2 is not detected, the CPU 11 again determines in steps A1 and A2. Only the processing is repeatedly executed, and the state returns to the initial standby state where the sonar 6 of the buoy 3 waits for the navigation object to be detected.
[0064]
Here, if the submarine 28 does not take the evacuation action without following the warning message, the “data collection and message reproduction process” and the “data analysis and message selection process” are again executed in the same manner as described above. The same warning message will be output.
[0065]
If another submarine (a submarine with different mechanical sound characteristics) is detected again, a warning message is output in a language corresponding to the language of this submarine's own country by the same processing procedure as described above.
[0066]
As described above, when the ship type is identified by the mechanical sound of the submarine 28 and the possessing country becomes clear (when the judgment result of step B9 becomes true), it is used in the possessing country of the submarine. Since the message that warns of intrusion into the alert sea area will be reproduced depending on the language being used, submarine crews etc. will easily know what the warning means.
[0067]
When the mechanical sound of the submarine 28 is not detected (when the determination result at Step B6 is false), or when the ship type is unknown (when the determination result at Step B9 is false), Messages that warn of intrusion into the alert sea area will be played back in the specified language, but by playing back the message using a language such as English that has versatility, it will have a certain level of effectiveness. Warning.
[0068]
In this embodiment, the aircraft 2 is adopted as a base station that moves in the air. However, it is technically possible to configure a base station that moves in the air by an artificial satellite equipped with the transmission / reception means 18 and the information processing means 19. It is. A geostationary satellite has a ground speed of 0, but because it is moving along an orbit around the earth, it is still a type of base station moving in the air.
[0069]
FIG. 9 is a diagram showing an outline of another embodiment in which a marine invasion warning system is configured by the buoy 3 having the same configuration and function as described above, the communication satellite 29, and the ground base station 30.
[0070]
When such a configuration is applied, the transmission / reception means 18 and the information processing means 19 are installed in the ground base station 30 to communicate data transmission between the transmission / reception means 18 of the base station 30 and the transmission / reception means 27 of the buoy 3. This is done via the satellite 29.
[0071]
Since the communication satellite 29 is merely used as a relay point for data transmission, no special additional equipment is required, and an already launched satellite can be used as it is.
[0072]
When a plurality of buoys 3 are simultaneously distributed on the sea, an identification code is attached to each buoy 3, and the identification code is transmitted together with the detected submarine position data and acoustic data for each buoy 3. To do. Then, the voice data of the warning message to be transmitted is specified for each identification code based on the position data and acoustic data received by the information processing means 19 of the base station 30 via the communication satellite 29, and this identification code is included. The voice data of the warning message corresponding to the identification code is transmitted to the buoy 3 via the communication satellite 29.
[0073]
Thus, for each navigation body detected by the sonar 6 of each buoy 3, an appropriate warning message can be transmitted for each buoy 3 depending on what language of the country that owns the ship type is. .
[0074]
【The invention's effect】
In the sea area invasion warning method of the present invention, the current position of the navigation body is obtained based on the absolute position of the sonar detected by the absolute position detection means and the relative position of the navigation body based on the sonar position. Even if the sonar distribution position is inaccurate, or even when the sonar is washed away by the ocean current or the like, the absolute position of the navigation body can be appropriately detected.
In addition, since the relative position of the navigation object is detected using passive or active sonar, the position of an unspecified number of navigation objects that are not limited in specification, not limited to a specific navigation object that transmits a pinger signal, etc. It is possible to accurately determine whether or not there is an intrusion into the alert sea area.
In addition, warnings for intrusion into the alert sea area are made with warning messages consisting of voices indicating the intrusion into the alert sea area, that is, voices that make sense using language, so sirens or buzzers are used as warning means. Unlike the case, the contents of the warning can be appropriately notified to the crew of the navigation body.
[0075]
Furthermore, the relationship between the characteristics and language of the machine sound for each type of navigation body and the voice data of the warning message for each language are stored in advance in the information processing means of the base station, and the machine sound for each type of navigation body is stored. To determine the language corresponding to the type of navigation object that has characteristics similar to the characteristics of the detected mechanical sound of the navigation vehicle. Corresponding stored warning message audio data is selected and transmitted to the buoy so that it can be played back by the buoy speaker. It is possible to give a warning about the intrusion of the vehicle, and to reliably notify the contents of the warning to the crew of the navigation body.
In addition, by placing information processing means required for complicated processing in the base station, the buoy can be reduced in size and cost, and cost damage when the buoy becomes uncollectable can be reduced.
[0077]
Furthermore, by installing transmission / reception means and information processing means at the ground base station, and performing data transmission between the buoy and the base station via a communication satellite, the base station can be set up easily and cost is increased. The problem is solved.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram showing an example of a system required when applying a marine invasion warning method of the present invention.
FIG. 2 is a functional block diagram showing a connection relationship of devices installed in a buoy.
FIG. 3 is a functional block diagram showing an outline of a configuration of transmission / reception means and information processing means arranged in an aircraft.
FIG. 4 is a conceptual diagram showing an example of a frequency characteristic storage file storing mechanical sound characteristics.
FIG. 5 is a conceptual diagram showing an example of a working language storage file that stores a correspondence relationship between a country name and a language of a holding country.
FIG. 6 is a conceptual diagram showing an example of an audio data storage file storing a correspondence relationship between a language and audio data of a warning message.
FIG. 7 is a flowchart showing an outline of a “data collection and message reproduction process” performed by a CPU arranged in the buoy.
FIG. 8 is a flowchart showing an outline of a “data analysis and message selection process” performed by a CPU provided in the information processing means.
FIG. 9 is a conceptual diagram simply showing an embodiment in which a marine invasion warning system is configured by a buoy, a communication satellite, and a ground base station.
[Explanation of symbols]
1 Sea area warning system
2 Aircraft
3 Buoy
4 Buoy body
5 Cable
6 Sonar
7 Speaker
8 GPS receiver (absolute position detection means)
9 Transmission / reception circuit (main part of transmission / reception means)
10 Transmitting and receiving antenna
11 CPU
12 Bus
13 ROM
14 RAM
15 I / O circuit
16, 17 drivers
18 Transmission / reception means
19 Information processing means (computer system)
20 Transmitting and receiving antenna
21 Transceiver circuit
22 CPU
23 ROM
24 RAM
25 Nonvolatile memory
26 I / O circuit
27 Transmission / reception means
28 Submarine (Navigator, Ship)
29 Communication satellite
30 base station

Claims (2)

A sonar for detecting mechanical sound and relative position of the navigation body, an absolute position detecting means for specifying the current position of the sonar, a speaker for outputting a warning message, and a transmitting / receiving means for transmitting / receiving data While spreading buoys on the sea,
The base station moving in the air stores the transmission / reception means for transmitting and receiving data, the correspondence between the characteristics of the machine sound and the language for each type of navigation object, and the voice data and warning area of the warning message for each language. Information processing means to be deployed,
Transmitting the mechanical sound and relative position of the navigation body detected by the sonar and the current position of the sonar specified by the absolute position detecting means to the transmitting / receiving means of the base station via the transmitting / receiving means of the buoy;
After the information processing means of the base station identifies the current position of the navigation object based on the relative position of the navigation object with respect to the sonar and the current position of the sonar, a warning sea area stored in advance in the information processing means Compared with the current position of the navigation body to determine whether or not the navigation body has entered the alert sea area, and only when the navigation body has entered the alert sea area, the information processing means A language corresponding to the type of navigation body having characteristics similar to the characteristics of the mechanical sound of the navigation body by comparing the characteristics of the mechanical sound of the navigation body stored in advance with the characteristics of the mechanical sound of the navigation body And transmitting the voice data of the warning message stored corresponding to this language to the buoy transmission / reception means via the transmission / reception means of the base station,
A marine invasion warning method, wherein voice data of the warning message is reproduced by a speaker of the buoy. A sonar for detecting mechanical sound and relative position of the navigation body, an absolute position detecting means for specifying the current position of the sonar, a speaker for outputting a warning message, and a transmitting / receiving means for transmitting / receiving data While spreading buoys on the sea,
In the ground base station, transmission / reception means for transmitting / receiving data, correspondence between mechanical sound characteristics and languages for each type of navigation object, information for storing voice data of warning messages and warning areas for each language A processing means,
The base station transmitting / receiving means transmits the mechanical sound and relative position of the navigation body detected by the sonar and the current position of the sonar specified by the absolute position detecting means via the buoy transmitting / receiving means and a communication satellite. To
After the information processing means of the base station identifies the current position of the navigation object based on the relative position of the navigation object with respect to the sonar and the current position of the sonar, a warning sea area stored in advance in the information processing means Compared with the current position of the navigation body to determine whether or not the navigation body has entered the alert sea area, and only when the navigation body has entered the alert sea area, the information processing means A language corresponding to the type of navigation body having characteristics similar to the characteristics of the mechanical sound of the navigation body by comparing the characteristics of the mechanical sound of the navigation body stored in advance with the characteristics of the mechanical sound of the navigation body The voice data of the warning message stored corresponding to this language is transmitted to the buoy transmission / reception means via the transmission / reception means of the base station and the communication satellite,
A marine invasion warning method, wherein voice data of the warning message is reproduced by a speaker of the buoy.

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