JP2016177382A - Marine navigation support server system and marine navigation support method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contribute to the safe navigation of ships by providing a sea-route map corresponding to a type of ship by applying the conventional navigation technology and using a radio communication terminal such as a smart phone.SOLUTION: A server system 3 receives positional information on a radio communication terminal 2 and information on the size of a ship 4 from the radio communication terminal 2 carried around by a user on board the ship 4, creates navigation trajectory information composed of time-series positional information on the ship 4 correspondingly to the size of the ship 4, and updates information on a ship lane on which the ship can navigate per size of the ship 4 using the navigation trajectory information as an input.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a marine navigation support system composed of a wireless communication terminal equipped with GPS and a server system, and in particular, diverts the configuration of an existing land road car navigation system. Based on the position information received from the wireless communication terminal and the type of the ship, the navigation information for the ship is provided to the wireless communication terminal, and the amount of drainage of the ship collected from each wireless communication terminal and the locus of the position information of the ship The present invention relates to a marine navigation support server system and a terminal that can contribute to safe navigation of a ship by updating navigation route information that allows the navigation of the ship.

  Conventionally, regarding maritime safety, the Maritime Traffic Center has provided information to navigating vessels, and navigation control has been carried out so that huge vessels can safely navigate the route, but the service area is limited, It was limited to a specific ship provided with an automatic identification device AIS (Automatic Identification System).

  On the other hand, in recent years, as the number of owners of vessels other than fishing boats and cargo passenger ships (hereinafter referred to as “pleasure boats”), mainly leisure, such as yachts, cruisers, motor boats, and recreational fishing boats, (For example, accidents on a reef, a stationary net, etc.) are also increasing.

  According to statistical data, of the maritime accidents occurring in Japan, 80% of the maritime accidents are less than 3 nautical miles along the coast, and 94% of the maritime accidents involving dead and missing persons are small vessels such as fishing boats, recreational fishing boats, and pleasure boats. I know that there is. Small ships are rarely equipped with expensive marine navigation equipment, and inexpensive and highly reliable marine navigation equipment is required.

  For this reason, a technology has been developed as a technology for the ship to avoid dangers such as grounding, by notifying the slave station of the danger by communicating with the master station (server) on the ground and the slave station (client) installed on the ship. It has been.

  For example, in Patent Document 1, a marine information measuring device is provided in a customer's fish boat, pleasure boat, etc., which has been contracted in advance, and the current position information of the ship to which the measuring device is attached and the marine information of the sea area where the ship is located. Measure with measuring equipment, send measurement information to the server, the server registers the amount of drainage of the ship in advance, and displays the sea state information on the map by aggregating the received ship position information and sea state information In addition, a method is disclosed in which a ship's risk level is calculated from sea state information and the amount of water discharged from the ship, the danger information is displayed / warned, and the user accesses the server to receive the sea state information.

  In Patent Document 2, in a system that distributes maritime safety information from a server to a mobile terminal device that can be located by a user on board a ship, the terminal position of the mobile terminal device, the current time, the size of the ship, the ship A coastal / coastal information system comprising distribution control means for controlling distribution based on an evaluation result obtained by evaluating at least one selected from the type, course, ship speed, destination, and boarding purpose is disclosed. Yes.

In addition, as a road navigation technology on land, a technology that provides route guidance from the current location to the destination by using an application installed in a mobile communication terminal such as a mobile phone or a smartphone when driving or walking is becoming widespread. Yes.
In this technology, the current position positioned by GPS provided in the mobile communication terminal is plotted on a road map provided in the server or mobile communication terminal by a technique generally called “map matching”. It is possible to display. Further, by inputting the destination to the wireless communication terminal, it is possible to calculate the route from the current position to the destination on the server or the portable communication terminal and to provide route guidance to the user.

JP 2004-354069 A JP 2005-101992 A

Unlike road maps handled by land road navigation technology, route maps have the following characteristics.
First, there are differences in the sea routes that can be navigated depending on the amount of drainage (tons). In other words, since the depth of water that can be passed varies depending on the ship, the risk of stranded becomes higher as the tonnage increases, and the navigation route is limited.
In addition, the depth of water changes with tides. The sea route that can be navigated varies depending on the conditions of the date and the amount of wastewater.

Among conventional technologies, navigation technology for roads on land is limited in size for vehicles such as automobiles, and there is no significant difference in roads that can pass unless it is a special vehicle. Even for the same route guidance can be performed. For this reason, when navigation technology for land roads is applied to the sea, problems such as safe navigation cannot be solved.
The invention described in Patent Document 1 is difficult to introduce because it is equipped with a measuring device and requires an administrator's trouble because it is necessary to reserve a drainage amount in advance.
In Patent Document 2, as a means for confirming the change of the marine situation every moment, it can be avoided by installing a device that can receive AIS, a device such as a navigation system, but it is expensive for beginners in maritime leisure sports. It is necessary to provide a lower threshold by substituting a cheaper and more familiar one.

  Some boats sailing on the sea are unfamiliar with judging the state of the sea due to lack of experience, so it is not possible to select a place to go to, and it is impossible to accurately grasp changes in the state of the sea, leading to the occurrence of maritime accidents. is there. The technology which aims at ease and safety for all persons from beginners to experienced persons in marine leisure sports is desired.

  The present invention provides a system that can be implemented in a wireless communication terminal such as a smartphone by providing a sea route map according to the type of a ship by a simple method while applying a conventional navigation technology. The purpose is to contribute to safety.

  (1) A server system (for example, a server system 3 to be described later) that is communicably connected to a wireless communication terminal (for example, a later-described wireless communication terminal 2), and the server system includes a wireless unit (for example, to be described later) A radio unit 32), a control unit (for example, a control unit 30 to be described later), and a storage unit (for example, a storage unit 31 to be described later) that stores navigation information that can be navigated for each size of the ship, The control unit receives, via the wireless unit, a ship information receiving unit (for example, the position information of the wireless communication terminal and the size information of the ship from the wireless communication terminal carried by a user boarding the ship) A current position information processing unit 302 described later, and a navigation history creation update unit (for example, a navigation history generation described later) that generates navigation trajectory information including time-series position information of the ship corresponding to the size of the ship. Update unit 3 4) and a navigation information creation / update unit that updates the navigation information that is stored in the storage unit and that can be navigated for each size of the ship, with the navigation trajectory information created by the navigation history creation / update unit as input. For example, a server system comprising: a route information creation / update unit 305) described later.

  According to the server system of (1), it is possible to create and update route information that can be navigated for each size of the ship based on the size of the ship and the navigation trajectory of the ship received from the wireless communication terminal 2. By doing so, it is a system that can be installed in a wireless communication terminal such as a smartphone, instead of having a device that can receive AIS, a navigation system, and the like. Sea route map).

  (2) The ship information receiving unit (for example, a current position information processing unit 302 described later) further determines the reliability of the information on the size of the ship from the wireless communication terminal (for example, the wireless communication terminal 2 described later). The route information creation / update unit (for example, route information creation / update unit 305 described later) further responds to the size of the ship by the navigation history creation / update unit (for example, route history creation / update unit 304 described later). It is possible to navigate for each ship size stored in the storage unit (for example, storage unit 31 described later) using the navigation trajectory information created in this way and the reliability of the vessel size information as inputs. The server system according to (1), wherein the navigation route information is updated.

  According to the server system of (2), for example, even if a wrong amount of drainage is input (reported) manually by the user, more appropriate route information is updated based on the reliability of the information. be able to.

  (3) The storage unit (for example, a storage unit 31 to be described later) further stores a track record level based on a past navigation record of the route information together with route information that can be navigated for each size of the ship, and the route information The creation / update unit (for example, a route information creation / update unit 305 described later) further updates the performance level based on the past navigation results of the route information that can be navigated for each size of the ship (1). Or the server system according to (2).

  According to the server system of (3), for example, in a wireless communication terminal, it is possible to display a route with a high past record level and a high track record level with a thick line. For example, as with a wide trunk road on land, On the other hand, a safer route can be effectively shown.

  (4) A wireless unit (for example, a wireless unit 32 described later), a storage unit (for example, a storage unit 31 described later) that stores navigation information that can be navigated for each size of the ship, and a control unit (for example, described later) A server system (for example, a server system 3 to be described later) that is communicably connected to a wireless communication terminal (for example, a wireless communication terminal 2 to be described later) provided with the control unit 30) A route information creation / updating method for updating route information that can be navigated for each size of the wireless communication device from the wireless communication terminal carried by a user boarding a ship by the control unit via the wireless unit. A ship information receiving step for receiving position information of the terminal and information on the size of the ship, and a navigation history for creating navigation trajectory information composed of time-series position information of the ship in correspondence with the size of the ship Create A new step and a route information creation and update step for updating the route information that can be navigated for each size of the ship, stored in the storage unit, with the navigation trajectory information created in the navigation history creation and update step as an input; A route information creation / updating method comprising:

  (5) The ship information receiving step further receives a reliability of the ship size information from the wireless communication terminal (for example, a wireless communication terminal 2 described later), and the route information creation and update step further includes The size of the ship stored in the storage unit, with the input of the navigation trajectory information created corresponding to the size of the ship and the reliability of the size information of the ship in the navigation history creation update step The route information creation and update method according to (4), wherein the route information that can be navigated is updated.

  (6) The storage unit further stores a track record level based on a past navigation record of the route information together with route information that can be navigated for each size of the ship, and the route information creation update step further includes the ship information The route information creation / updating method according to (4) or (5), wherein a performance level based on a past navigation record of the route information that can be navigated for each size is updated.

  According to the methods (4) to (6), the same effects as the server systems (1) to (3) can be obtained.

According to the present invention, a system that can be mounted on a wireless communication terminal such as a smartphone is provided by providing a sea route map according to the type of a ship by a simple method while applying a conventional navigation technology, It is possible to contribute to the safety of navigation.
According to the present invention, for beginners in marine leisure sports, it is possible to use route information that has been proven in the past from a wireless communication terminal, instead of having a device such as a device capable of receiving AIS or a navigation system. The effect of lowering the threshold for sports can be obtained.
In addition, since the ship navigation information is uploaded to the server system one by one, it is possible to refer to the ship's previous navigation results when any problem occurs.

1 is a diagram showing a system configuration of a navigation system 100. FIG. 2 is a diagram showing a configuration of a wireless communication terminal 2. FIG. 2 is a diagram illustrating a configuration of a server system 3. FIG. It is a figure which shows the average value (For example, the place which connects the center point of a several navigation locus | trajectory) of all the navigation locus | trajectories of the ship 4 with the same amount of drainage. It is a figure which shows the example of the screen which displays the distributed sea route guidance displayed on the wireless communication terminal. 3 is a flowchart showing a processing flow of the navigation system 100.

[First Embodiment]
Hereinafter, a preferred embodiment of the navigation system of the present invention will be described with reference to FIGS.

[Functional configuration of marine navigation support system]
A configuration of a marine navigation support system according to a preferred embodiment of the present invention will be described.

  As shown in FIG. 1, the marine navigation support system includes a land vehicle 1 including a two-wheeled vehicle, a four-wheeled vehicle, a ship 4 including a pleasure boat, a small boat, a wireless communication terminal 2, and a wireless communication terminal. And a server system 3 capable of transmitting and receiving data to and from the server 2.

The wireless communication terminal 2 is a portable electronic device including a smartphone, a tablet terminal, a PDA, a notebook computer, and a mobile phone, and includes an electronic device having a wireless communication function.
Various application software can be installed in the wireless communication terminal 2. In this embodiment, the type of the vehicle 1 or the ship 4 (particularly, the amount of drainage of the ship 4) is recognized (receives connection information) by the proximity wireless communication means or the like, and is connected to the server system 3 to transmit / receive data.

  Software such as navigation (route guidance) is installed in the wireless communication terminal 2. On the land where the user carrying the wireless communication terminal 2 is on the vehicle 1, the server system 3 is based on the user's request. The road map acquired from can be displayed and route guidance from the current position to the destination can be performed.

  In addition, software such as sea route map guidance is installed in the wireless communication terminal 2, and the server system 3 is based on the user's request when the user carrying the wireless communication terminal 2 is on the ship 1. The navigation chart that can be navigated is displayed by displaying the chart and navigation information that can be navigated.

  Note that software such as navigation (route guidance) and software such as sea route map guidance may be installed in advance. Further, it may be downloaded as necessary when transmitting / receiving to / from the server system 3. For example, in the case where software such as navigation (route guidance) and software such as sea route map guidance are constructed by a Web application that runs on a browser, the software can be downloaded as needed during transmission and reception with the server system 3.

The server system 3 can transmit and receive data to and from the wireless communication terminal 2 via the communication unit 32. In addition to the chart and navigable route information, the server system 3 stores the type (drainage amount) of the ship 4 and the navigation trajectory acquired through the wireless communication terminal 2 as will be described later, and also displays the marine route map from the navigation trajectory. A rewriting program, a program for generating / updating navigable route information from the type of ship 4, and a program for calculating a route to a destination according to the navigable route information are stored.
The server system 3 distributes navigable route information to the wireless communication terminal 2 based on a request from the wireless communication terminal 2.

  In the embodiment of the present invention, the server system 3 is described as one server, but each function of the server system 3 may be appropriately distributed to a plurality of servers. Moreover, you may implement | achieve each function of the server system 3 using a virtual server function etc. on a cloud. The server system 3 may be a server system including a plurality of servers such as a Web server, an application server, and a database server.

  Next, each configuration will be described.

<Wireless communication terminal 2>
As shown in FIG. 2, the wireless communication terminal 2 includes at least a control unit 20, a storage unit 21, a wireless unit 22, a sensor unit 23, a display unit 24, and an input unit 25. Further, the wireless communication terminal 2 can include a short-range wireless unit 26.

The control unit 20 is constituted by a microprocessor having a CPU, RAM, ROM, I / O and the like. The CPU executes each program read from the ROM or the storage unit 21, reads information from the RAM, the ROM, and the storage unit 21 at the time of execution, and writes information to the RAM and the storage unit 21. Signals are exchanged with the wireless unit 22, the sensor unit 23, the display unit 24, the input unit 25, the short-range wireless unit 26, and the like.
Details will be described later.

  The storage unit 21 is composed of a semiconductor memory and the like, and includes an operating system (OS), programs for route guidance, programs for route map guidance, road map information, road link information, chart information, and navigation. Various information such as navigation information, various parameters set by the user, and position information are stored. The road map information, road link information, nautical chart information, navigable route information, and the like may be stored in the storage unit 21 in advance. Moreover, the structure acquired suitably from the server system 3 may be sufficient.

The wireless unit 22 includes a DSP (Digital Signal Processor) and the like, and performs wireless communication through a wireless communication network represented by a mobile phone communication network such as 3G or LTE, and can perform wireless communication with the server system 3. It is configured. The mobile phone communication network can transmit and receive about 15 km from the land, for example.
The wireless unit 22 is current location information of the wireless communication terminal 2, an ID (hereinafter referred to as “user ID”) for identifying a service subscription state, a password, vehicle information (for example, vehicle ID, vehicle type, license plate information, etc.) ), Vehicle state (eg, ignition-on state, running state, ignition-off state, etc.), vehicle destination information, vessel information (eg, vessel name, vessel type, vessel drainage, etc.), vessel (For example, navigation state, ship route, ship speed, refueling state, fuel consumption information, etc.) etc. are transmitted to the server system 3, and the vehicle route information, ship navigation map information, etc. are sent to the server system. 3 can be received.

The sensor unit 23 includes a GPS sensor, a gyro sensor, a geomagnetic sensor, and the like. The sensor unit 23 has a function as position detecting means for detecting the current position, receives a GPS satellite signal by the GPS sensor, and measures the current position (latitude and longitude) of the wireless communication terminal 2.
In addition, when GPS communication is impossible, the current position of the vehicle 1 can be calculated from base station information acquired from the wireless unit 22 using AGPS (Assisted Global Positioning System) communication.

  The display unit 24 is configured by a display device such as a liquid crystal display or an organic EL panel, and displays an image in response to an instruction from the control unit 20. The display unit 24 receives the current position of the wireless communication terminal 2, the map information (road map or chart) around the current position of the wireless communication terminal 2 read from the storage unit 21, and the server system 3 via the wireless unit 22. Various information such as the acquired route information of the vehicle 1 and the navigation route information of the ship can be displayed.

  The input unit 25 includes a physical switch called a numeric keypad, an input device (not shown) such as a touch panel provided on the display surface of the display unit 24, and the like. By outputting to the control unit 20 a signal based on an operation input from the input unit 25, for example, pressing of a numeric keypad by a user, or touch on a touch panel, operations such as determination of a facility to stop by and enlargement / reduction of a map can be performed.

  Note that the wireless communication terminal 2 can include a short-range wireless unit 26 by non-contact communication called NFC (Near Field Communication), for example.

In recent years, the vehicle 1 includes an automatic recognition unit such as a short-range wireless unit (for example, Bluetooth (registered trademark), Wi-Fi, etc.), and notifies vehicle information and a vehicle state via the short-range wireless unit. Is possible.
For this reason, the wireless communication terminal 2 provided with the near field communication part 26 can acquire vehicle information and the state of a vehicle by communicating with the near field wireless part etc. of the vehicle 1. FIG.

Moreover, the ship 1 like a pleasure boat is provided with automatic recognition means, such as a short-distance radio | wireless part (for example, Bluetooth (trademark), Wi-Fi etc.), and ship information and position information via the said short-distance radio | wireless part. It is possible to notify positioning accuracy information.
For this reason, the wireless communication terminal 2 including the short-range wireless unit 26 can acquire ship information, the state of the ship, and the like by communicating with the short-range wireless unit of the ship 2 and the like.

  As described above, the wireless communication terminal 2 communicates with the vehicle 1 and the ship 4 by the short-range wireless unit 26 to acquire information on whether the user is on the vehicle 1 or on the ship 4. Is possible. Although not shown, a wired short-range communication unit can be provided separately from the short-range wireless unit 26.

The control unit 20 executes each program (hereinafter, also collectively referred to as “route guidance / sea route guidance application”), thereby giving the wireless communication terminal 2 a predetermined means (hereinafter, also referred to as “route guidance / sea route guidance unit”). ). For example, when a user is in the vehicle 1 and each program for route guidance is activated, a route that indicates a right or left turn while displaying the current position by using position information from the sensor unit 23 Guidance is possible.
Further, when the user is on board the ship 4, when each program for sea route guidance is activated, the ship is displayed while displaying the current position by using the position information from the sensor unit 23 (especially GPS sensor). It is possible to guide a navigable sea route map around the current position according to the amount of drainage. In addition, when software such as navigation (route guidance) and software such as sea route map guidance is constructed by a Web application that runs on a browser, these software are downloaded as necessary when transmitting / receiving to / from the server system 3. By being activated, route guidance / sea route guidance becomes possible.
In addition, the control unit 20 causes the wireless communication terminal 2 to execute a predetermined procedure (hereinafter also collectively referred to as “route guidance / sea route guidance procedure”) by executing each program for route guidance / sea route guidance.

  Hereinafter, the function of the control unit 20 will be described from the viewpoint of the route guidance / sea route guidance unit. Note that the description based on the viewpoint of the wireless communication terminal_guidance procedure (method) can be described by replacing “part” with “procedure”, and thus will be omitted.

  As shown in FIG. 2, the control unit 20 includes a connection processing unit 201, a location information update unit 202, a connection information acquisition unit 203, a route setting unit 204, and a route guidance unit 205.

<Connection processing unit 201>
When the route guidance / sea route guidance application is activated by the user, the connection processing unit 201 turns on the GPS sensor or the like, and executes login processing to the server system 3 using, for example, a user ID and a password. At the same time, the current position information of the wireless communication terminal 2 calculated by the sensor unit 23 and the current time information acquired from the time measuring unit (not shown) are transmitted to the server system 3.
The transmission information may include a state acquired by the connection information acquisition unit 203 described later and indicating whether the user carrying the wireless communication terminal 2 is on the vehicle 1 or on the ship 4. it can. When the user is in the vehicle 1, the transmission information can include vehicle information and a vehicle state. When the user is on board the ship 4, the ship information and the state of the ship can be included as the transmission information.
When the user ends the route guidance / sea route guidance operation of the wireless communication terminal 2, the route guidance / sea route guidance stops its function.

<Location information update unit 202>
When the wireless communication terminal 2 is within the communication range of the mobile phone network, the location information update unit 202 performs wireless communication calculated by the user ID and the sensor unit 13 until the route guidance / sea route guidance application of the wireless communication terminal 2 is terminated. Current position information of the terminal 2 and current time information acquired from a timekeeping unit (not shown), the state of the vehicle when the user is on the vehicle 1, and when the user is on the boat 4 The state of the ship and the like are periodically transmitted to the server system 3.

When the wireless communication terminal 2 is outside the communication range of the mobile phone network, the location information update unit 202 displays the user ID and the current state of the wireless communication terminal 2 until the route guidance / sea route guidance application of the wireless communication terminal 2 is terminated. The position information, current time information, the state of the vehicle when the user is on the vehicle 1, and the state of the vessel when the user is on the ship 4 are periodically stored in the work area of the storage unit 21. Record.
When the wireless communication terminal 2 returns to the communication area of the mobile phone network, the position information update unit 202 uploads the position information and the like recorded in the work area while out of the communication area to the server system 3.

The position information update unit 202 displays the current position information and current time information of the wireless communication terminal 2 acquired at a predetermined time interval (for example, every 3 seconds), and the state of the vehicle when the user is on the vehicle 1. In addition, when the user is on board the ship 4, instead of transmitting the state of the ship to the server system 3 in real time each time, a plurality of them are collected together (for example, the current position of the wireless communication terminal 2 for 5 minutes). Information, current time information, and the like can be transmitted together (so-called burst transmission).
Note that the acquisition time interval of the current position information and the like of the wireless communication terminal 2 and the number of transmissions at a time when a plurality of burst transmissions are collectively transmitted, for example, via the parameter setting screen, the storage unit 21 of the wireless communication terminal 2 In addition, it can be set in advance as a parameter.

  By doing so, when the user is on board the ship 4, the server system 3 transmits the current position information of the wireless communication terminal 2, the current information transmitted from the wireless communication terminal 2 by the navigation history creation update unit 304 described later. Based on the time information, the state of the ship, and the like, navigation trajectory information including the type of the ship (drainage amount) and the navigation trajectory can be created and updated.

<Connection information acquisition unit 203>
The connection information acquisition unit 203 communicates with the vehicle 1 and the ship 4 via the short-range wireless unit 26 to determine whether the user carrying the wireless communication terminal 2 is on the vehicle 1 or on the ship 4. Further, when the user is in the vehicle 1, vehicle information and the state of the vehicle can be acquired, and when the user is in the boat 4, the ship information and the state of the ship can be acquired.

The connection information acquisition unit 203 is vehicle information acquired from the vehicle 1 when the user is on the vehicle 1 via the short-range wireless unit 26 or the vehicle state, or when the user is on the ship 4. The ship information acquired from the ship 4 and the state of the ship can be transmitted to the server system 3 via the wireless unit 22.
By doing so, the server system 3 determines whether the user is in the vehicle 1 or the ship 4 based on the connection information transmitted from the wireless communication terminal 2 by the boarding determination processing unit 303 described later. Can be determined.
When the user gets off the vehicle 1 and then gets on the ship 4, as described later, the boarding determination processing unit 303 of the server system 3 determines that the user has boarded the ship 4, and a route calculation unit described later. Step 306 performs a process of switching the route calculation from the land route information to the marine route information.

When the wireless communication terminal 2 cannot communicate with the vehicle 1 or the ship 4 via the short-range wireless unit 26, the connection information acquisition unit 203 displays an input screen for ship information (particularly the amount of drainage of the ship) on the display unit 24. To do. By doing so, the connection information acquisition part 203 can acquire ship information (especially the amount of drainage of a ship) of the ship 4 input by the user via the input screen.
However, in this case, if an incorrect amount of drainage or the like is input (declared), the ship itself is dangerous. As described later, the route information distributed from the server system 3 to the wireless communication terminal 2 is input to the input amount of drainage. It is desirable to transmit assuming a drainage amount larger than the value of.

For this reason, the connection information acquisition part 203 transmits ship information (especially ship drainage amount) to the server system 3 with the reliability information of ship information (especially ship drainage amount).
In addition, it is good also considering the information regarding the input source of ship information (especially the amount of drainage of a ship) as reliability information.
In that case, for example, when the portable wireless terminal 2 acquires ship information (particularly the amount of drainage of the ship) by close proximity wireless communication (that is, when the input source is close proximity wireless communication), the reliability is high, and the ship information (particularly ship information) When the portable wireless terminal 2 obtains the amount of wastewater by manual input (that is, when the input source is manual input), the reliability is low.
In addition to manual input, for example, when the ship information of the ship 4 (particularly, the amount of drainage of the ship) is registered in advance in the portable wireless terminal 2 (that is, when the input source is registered in advance), the reliability is increased. May be high. Thus, the reliability information of ship information (especially the amount of drainage of a ship) can be diverted by the input source of the said data.
In addition, when the ship information (particularly the amount of discharged water of the ship) cannot be acquired by the short-range wireless unit 26 and the amount of discharged water is not manually input, the position information indicating that the ship is on the sea is the server system 3. Can be transmitted to the wireless communication terminal 2, the safest route information, that is, data for a ship with a large amount of drainage.

<Route setting unit 204>
The route setting unit 204 displays a screen for inputting a destination for route guidance to the user via the display unit 24. At that time, the route setting unit 204 uses the sensor unit 23 to identify the current position (latitude and longitude), and sets the current position as a departure position by default. The route setting unit 204 sets a destination input by the user via the input unit 25. The route setting unit 204 transmits destination information and the like to the server system 3 via the wireless unit 22.

<Route guide unit 205>
As described above, the route guide unit 205 executes road route guidance based on route information received from the server system 3 when the user is in the vehicle 1.
Thereafter, when the user gets off the vehicle 1 and gets on the ship 4, as described above, the connection information acquisition unit 203 informs the server system 3 that the user has boarded the ship 4 via the wireless unit 22. Send.
By doing so, the boarding determination processing unit 303 of the server system 3 switches the route setting mode of the route calculation unit 306 from land navigation to marine navigation. As will be described later, the route calculation unit 306 of the server system 3 searches for route information corresponding to the ship information (particularly, the amount of drainage of the ship) based on the current position of the wireless communication terminal 2 (the current position of the ship 4). The selected route information is transmitted to the wireless communication terminal 2.
By doing so, when the user is on board the ship 4, the route guide unit 205 is based on the chart received from the server system 3 and the route information on the ship 4 that can be navigated. It is possible to guide the navigation route information around the position.
Thus, when the route guidance by the wireless communication terminal 2 is started, it is possible to continue the route guidance when the user gets on the ship 4 after getting off the vehicle 1.

  If route guidance or sea route guidance by the route guidance unit 205 of the wireless communication terminal 2 is not used, the task of the route guidance unit 205 may be terminated.

Next, the server system 3 will be described.
<Server system 3>
As illustrated in FIG. 3, the server system 3 includes at least a control unit 30, a storage unit 31, and a communication unit 32, and further includes a display unit 34 and an input unit 35 as necessary.

The control unit 30 includes a processor having a CPU, a RAM, a ROM, an I / O, and the like, and controls each component. The CPU executes each program for navigation read from the RAM, ROM, or storage unit 31, and reads information from the RAM, ROM, and storage unit 31 when executing the program. Information is written and signals are exchanged with the communication unit 32.
Details will be described later.

  The storage unit 31 includes a semiconductor memory, a hard disk drive, and the like, and stores various information such as an operating system (OS) and software called applications. Therefore, the storage unit 31 includes various storage areas such as a user information area 311, a navigation information area 312, a navigation history information area 313, a connection history information area 314, an external information area 315, and a road information / sea route information area 316. It is secured.

  In the user information area 311 of the storage unit 31, vehicle information is managed for each “vehicle ID” and ship information is managed for each “vessel ID”, and user information (for example, family structure, age structure) is managed for each “user ID”. A subscriber information database 3111 for managing the current address and the like.

  In the navigation information area 312 of the storage unit 31, road map information, road link information, and the like for navigation used for route guidance while the user is on the vehicle 1 are stored in advance. The road map information includes display map data for displaying the background of roads and road maps, position information of nodes (for example, road intersections, inflection points, end points, etc.) and their type information, and routes connecting the nodes. And link network data including link cost data regarding cost information (for example, distance, required time, etc.) of all links, and the like. These pieces of information can be stored in a corresponding table, file, etc. by setting a table, file, etc. for each piece of information.

  Similarly, the navigation information area 312 of the storage unit 31 includes display map data (nautical chart) serving as a background for displaying route information and the like, information on shallow water, and the like. These pieces of information can be stored in a corresponding table, file, etc. by setting a table, file, etc. for each piece of information.

In the navigation history information area 313 of the storage unit 31, a time series passed from the past collected from the wireless communication terminal 2 when the wireless communication terminal 2 was in the route guidance mode by the navigation history creation / updating unit 305 described later. Position information (hereinafter also referred to as “navigation trajectory information”) is stored together with the ship ID, the type of the ship (drainage amount), and the like.
More specifically, the navigation results when the ship type (drainage amount) is authenticated by short-range wireless communication and the navigation results when the vessel type (drainage amount) is authenticated by user manual input, The result data can be stored after being given a weighting that “the result is high”.
For example, when the weight of the navigation record when the ship type (drainage) is authenticated by short-range wireless communication is 1, the navigation record when the ship type (drainage) is authenticated manually by the user The weighting can be set to 0.5, for example.

  In the connection history information area 314 of the storage unit 31, position information, time information, destination information, and the vehicle 1 or ship periodically transmitted from the position information update unit 202 of the wireless communication terminal 2 to the server system 3. A connection history record is stored that manages the traveling direction of each user ID, vehicle ID, and ship ID.

The external information area 315 of the storage unit 31 includes fishing gear installation information such as stationary nets, tide level information, weather information, emergency information (sunk ship information), live cameras (Japan Coast Guard), fishing regulation information for each sea area (thatched bait) (Regulation, prohibited fishing) etc. are remembered. The server system 3 appropriately collects these pieces of information from the information provider and updates them to the latest information. These pieces of information can be stored in a corresponding table, file, etc. by setting a table, file, etc. for each piece of information.
Further, the server system 3 may acquire the information whenever necessary from the server system of the information providing destination.

  The road information / sea route information area 316 of the storage unit 31 is used when the route calculation unit 306 described later is in a land mode and road information used when the route calculation unit 306 is in a marine mode. The navigation information on the navigation route and the actual level of the navigation route are stored in accordance with the type (drainage amount) of the ship. The track record level will be described later.

  The communication unit 32 implements a communication protocol capable of wireless communication when transmitting and receiving with a wireless communication terminal.

The control unit 30 causes the server system 3 to function as predetermined means (hereinafter collectively referred to as “route guidance / sea route guidance control unit”) by executing each program for the route guidance / sea route guidance application.
In addition, the control unit 30 causes the server system 3 to execute predetermined steps (hereinafter collectively referred to as “route guidance / sea route guidance control step”) by executing each program for route guidance / sea route guidance.

  Hereinafter, functions of the control unit 30 will be described from the viewpoint of the route guidance / sea route guidance control unit. The explanation based on the viewpoint of the route guidance / sea route guidance control step (method) can be explained by substituting “step” for “part”, and will be omitted.

  As shown in FIG. 3, the control unit 30 includes a login processing unit 301, a current position information processing unit 302, a boarding determination processing unit 303, a navigation history creation update unit 304, a route information creation update unit 305, A route calculation unit 306 and a route notification unit 307.

<Login processing unit 301>
The login processing unit 301 executes a login process from the wireless communication terminal 2 to perform a connection process with the wireless communication terminal 2 and also transmits position information, time information, a traveling direction, and a destination transmitted from the wireless communication terminal 2. A connection history record for managing information and the like is created in the connection history information area 314.
As information received from the wireless communication terminal 2, when the user is on the vehicle 1, vehicle information and the state of the vehicle are displayed. When the user is on the ship 4, the ship information and the ship information are displayed. States can be included.

<Current position information processing unit 302>
When the wireless communication terminal 2 is within the communication range of the mobile phone network, the current position information processing unit 302 displays the user ID periodically transmitted from the position information update unit 202 of the wireless communication terminal 2 and the current position of the wireless communication terminal 2. Information, current time information, the state of the vehicle when the user is on the vehicle 1, and the state of the vessel when the user is on the ship 4 are additionally updated in the above-described connection history record.
Note that when the wireless communication terminal 2 returns to the mobile phone network communication range after being out of the mobile phone network communication range, the current position information processing unit 302 receives the wireless communication terminal 2 from the wireless communication terminal 2 while out of the communication range. Receives the location information and the like recorded in the work area of the storage unit 21 together, and additionally updates the connection history record.
By doing so, regardless of whether or not the wireless communication terminal 2 is located within or outside the communication range of the mobile phone network, location information and the like until the ship 4 departs and returns to the port is additionally updated in the connection history record. be able to.
In addition, the navigation history creation update unit 305 described later creates the navigation trajectory information of the ship 4 collected from the wireless communication terminal 2 together with the reliability information, using the connection history record as an input. Here, the reliability information can use, for example, an input source that indicates whether the type (drainage amount) of the ship is automatically acquired by the short-range wireless unit 26 or manually input by the user.

<Boarding determination processing unit 303>
The boarding determination processing unit 303 determines whether the user carrying the wireless communication terminal 2 has boarded the vehicle 1 or boarded the ship 4 based on the connection information with the vehicle 1 or the ship 4 received via the communication unit 32. A state in which the vehicle 1 or the ship 4 is not boarded (embedded) (hereinafter also referred to as “other state”), a state in which the vehicle 1 is dismounted and aboard the ship 4, or a ship 4 is dismounted. A boarding / boarding state, such as whether the vehicle 1 has been boarded, is determined. Examples of other states include a walking state and a state where other transportation means (for example, a train, a subway, an airplane, etc.) are used.

  When it is determined that the user carrying the wireless communication terminal 2 gets off the vehicle 1 and boarded the ship 4, the boarding determination processing unit 303 changes the mode of route setting of the route calculation unit 306 from land navigation to marine navigation. Switch to. As will be described later, the route calculation unit 306 searches for and selects route information corresponding to the ship information (particularly the amount of drainage of the ship) based on the current position of the wireless communication terminal 2 (the current position of the ship 4).

  Conversely, when it is determined that the user carrying the wireless communication terminal 2 has unloaded the ship 4 and boarded the vehicle 1, the boarding determination processing unit 303 changes the route setting mode of the route calculation unit 306 from marine navigation to land Switch to navigation for As will be described later, the route calculation unit 306 calculates route information based on the current position of the wireless communication terminal 2 (current position of the vehicle 1).

<Navigation history creation / update unit 304>
The navigation history creation / updating unit 304 receives the connection history record as input, creates the navigation trajectory information of the vessel 4 together with the vessel ID, the type of the vessel (drainage amount), and the reliability information of the drainage amount information. Stored in the history information area 313. The navigation history creation / updating unit 304 determines that the user carrying the wireless communication terminal 2 has disembarked from the ship 4 by the boarding determination processing unit 303 (when the boarding state is changed from the boarded state to the non-boarded state). In addition, the navigation trajectory information may be created by batch processing using the connection history record as an input.

<Route information creation / updating unit 305>
The route information creation / updating unit 305 receives the navigation trajectory information created by the navigation history creation / updating unit 304 as an input and responds to the type of ship (drainage) stored in the road information / sea route information area 316 of the storage unit 31. In addition, the navigation route information that can be navigated is updated.

  Road navigation uses a technology that absorbs measurement errors by plotting GPS positioning positions on road positions on the map using “map matching” technology, but it can be traced like a road on the sea. There are no landmarks and map matching technology cannot be used. Therefore, in the present invention, a technique is adopted in which the displayed sea route is displayed thicker by accumulating the navigation results and matching to the sea route is not performed.

Specifically, the route information creation / updating unit 305 groups the vessels 4 that are considered to have the same type (drainage amount) of the vessels in a predetermined period.
Next, the navigation information creation update unit 305 groups navigation trajectories that are regarded as the same navigation trajectory from the navigation trajectories of the ships 4 classified into the same group in a preset fixed period. At this time, even if a ship 4 having the same ID is navigating a navigation trajectory that is considered to be the same, each navigation trajectory is treated as an independent trajectory.
Here, the certain period can be appropriately set as necessary.
Next, as shown in FIG. 4, the route information creation / updating unit 305 has an average value (for example, a plurality of navigation trajectories) of all the navigation trajectories for which the navigation trajectories are considered to be the same for the ships 4 that are regarded as having the same amount of drainage. The center point of the ship 4 is calculated, and is set as a navigable route for the ship 4 that is regarded as having the same type (drainage amount) of the ship.

Further, the route information creation / updating unit 305 regards the number of navigation trajectories based on the number of navigation trajectories that are regarded as the same navigation trajectory among the navigation trajectories of the vessels 4 that are considered to have the same type (drainage amount) of the vessels. When there are few, the track record level is set small, and the track record level is set large as the route has many navigation tracks.
Note that the performance level may be set based on the absolute value of the number of navigation trajectories. Further, the performance level may be set based on the relative size of the number of navigation trajectories.

For example, the route information creation / updating unit 305 can set the size of the record from the record level n to the record level 1 when the record level is n stages (n> 1).
A route with a large track record level is estimated to be a route that is easier to pass by accumulating the track record of navigation, so a route with a large track record level can be treated in the same way as a wide trunk road. can do.
It should be noted that the number of performance level stages and the like can be appropriately set as necessary.
By doing so, as shown in FIGS. 4 and 5, when the route guide unit 205 of the wireless communication terminal 2 displays a nautical chart and displays a route, the route is narrow for a route with a small track record level. The route is displayed with a line, and the route with a higher performance level can be displayed with a thicker line.

The route information creation / update unit 305 counts the number of navigation trajectories when the type of ship (drainage amount) is authenticated by short-range wireless communication, and the type of ship (drainage amount) is authenticated manually by the user. It is preferable to accumulate after giving weights according to the reliability with the count of the number of navigation trajectories.
More specifically, for example, when the ship type (drainage amount) is authenticated by short-range wireless communication, the weight by the reliability with respect to the number of navigation trajectories is set to 1, and the ship type (drainage amount) is authenticated manually by the user. If the weighting by reliability for the number of navigation trajectories is 0.5, the number of navigation trajectories when authenticated manually by the user when counting the number of grouped navigation trajectories is 0.5. Can be counted as The weighting value based on the reliability can be appropriately set as necessary.

<Ships that are considered to have the same ship type (drainage)>
When a plurality of ranges (upper limit value and lower limit value) of the drainage amount for regarding the same amount of drainage are set in advance, and the drainage amount of two ships belong to the same range, the route information creation update unit 305 Can be regarded as the same amount of wastewater.
For example, the amount of effluent of a ship less than 20 tons, the amount of effluent less than 5 tons, the amount of effluent more than 5 tons less than 10 tons, the amount of effluent more than 10 tons and less than 15 tons, and the amount of effluent more than 15 tons and less than 20 tons, When the drainage amount range is divided, the route information creation / updating unit 305 can consider that the two boats have the same drainage amount when the drainage amounts of the two vessels are within the same divided range. .
For ships of 20 tons and less than 50 tons, for example, the drainage range is 20 to 30 tons, 30 to 40 tons, 40 to 50 tons and 10 tons width. In the case of the division, the route information creation / update unit 305 can regard the amount of drainage of the two ships as the same when the amount of drainage of the two ships is the amount of drainage within the same range into which the two vessels are classified. Hereinafter, it can be appropriately set similarly.
The route information creation / updating unit 305 may regard the same amount of drainage only when the amount of drainage of the two ships has the same value.
About the range (upper limit value and lower limit value) of the drainage amount for regarding the amount of drainage as the same, it can set suitably as needed.

<About the navigation trajectory considered as the same navigation trajectory>
When the navigation trajectories of two ships 4 that are regarded as having the same amount of drainage are within a preset allowable range, the navigation information creation updating unit 305 can regard the two navigation trajectories as the same navigation trajectory. In addition, the value of the allowable range may be appropriately set according to need, for example, 100 m for a ship with a small amount of drainage and 200 m for a ship with a large amount of drainage. it can.

<About the display of the route>
According to the track record level, the thickness of the line indicating the route when displaying on the chart can be set in advance. The thickness of the line is preferably set as appropriate according to the scale of the chart.
By doing so, the route guide unit 205 of the wireless communication terminal 2 displays the thickness of the line indicating the route according to the track record level of the route when displaying the route on the chart.

<About updating route information>
As described above, the route information creation / updating unit 305 creates route information based on the navigation trajectory of the vessel 4 that is regarded as having the same type (drainage amount) of the vessel over a predetermined period of time.
The route information creation update unit 305 can recreate the route information every predetermined period (for example, every month) and update the route information with the recreated information.
Moreover, the number of navigation trajectories can be updated by adding the newly added navigation trajectory to the number of navigation trajectories calculated at the previous time. In this case, since the number of navigation tracks increases every time, the track record level can be set based on the relative size of the number of navigation tracks.

  In addition, about the predetermined period, it can set suitably as needed.

<Route calculation unit 306>
When the user gets on the vehicle 1, the route calculation unit 306 calculates route information from the current position of the vehicle 1 to the destination set by the user. When calculating route information, the traffic information and map information stored in the navigation area of the storage unit 31 are used to calculate an optimum route taking into account various conditions such as arrival time and use of toll roads. .
Here, the optimum route is, for example, the shortest arrival time, the shortest distance, priority on general roads, priority on toll roads, low tolls on toll roads, low CO2 emissions, etc. The route that best meets the specified target condition.

On the other hand, when the user gets on the ship 4, the route calculation unit 306 calculates the route guidance information as follows.
Hereinafter, the processing part for calculating the route guidance information in the route calculation unit 306 is also referred to as a sea route map information selection unit.
Based on the information received from the connection information acquisition unit 203 of the wireless communication terminal 2, the route calculation unit 306 (sea route map information selection unit) of the server system 3 determines ship information ( In particular, appropriate route information is transmitted to the wireless communication terminal 2 based on the amount of water discharged from the ship.
For example, the route calculation unit 306 (sea route map information selection unit) stores the route information corresponding to the ship information (particularly the amount of drainage of the ship) based on the current position of the wireless communication terminal 2 (the current position of the ship 4). The 31 road information / sea route information area 316 is searched, and the route information searched and selected is transmitted to the wireless communication terminal 2 together with the track record level of the route.

In addition, when the ship 4 side is not equipped with the automatic recognition means of the ship type (drainage amount) by proximity | contact wireless communication etc., the route calculation part 306 (sea route map information selection part) is the kind of ship (manual input by a user ( The route information is selected based on the amount of wastewater. In this case, if an incorrect amount of drainage is input (declared), the route calculation unit 306 may be dangerous because it may be dangerous and incorrect information may be transmitted to other ships based on the navigation results as described above. The (sea route map information selection unit) can transmit the route information to be distributed assuming a drainage amount larger than the manually input value.
Also, the automatic recognition means of the ship type (drainage amount) by the proximity wireless communication or the like is not performed by the manual input of the ship type (drainage amount), and the wireless communication terminal 2 is on the sea. When the location information is uploaded to the server system 3, the route calculation unit 306 (sea route map information selection unit) transmits the safest sea route map, that is, the route information for a ship with a large drainage amount, to the wireless communication terminal 2. be able to.

  However, as described above, since the water depth also changes due to tides, the sea route that can be navigated changes depending on the conditions of the date and time and the amount of drainage. In addition, there is a possibility that the navigation route that passes over the fishnet cannot be navigated. In addition, it is necessary to avoid weather information such as wave information as a route.

For this reason, the route calculation unit 306 (sea route map information selection unit) stores fishing gear installation information such as a stationary net, tide level information, weather information, emergency information (sunk ship information) stored in the external information area 315 of the storage unit 31. , Provide navigation information with reference to live cameras (Japan Coast Guard), fishing regulation information for each sea area (whisper bait regulation, no fishing), etc.
For example, the route calculation unit 306 (sea route map information selection unit) refers to the current tide information, for example, the difference in height between low tide and high tide is different. Remove from the selected route information or perform a warning process.
Further, the route calculation unit 306 (sea route map information selection unit) refers to the current fishing gear installation information such as a stationary net, and excludes the route that may pass over the fish net from the selected route information. , Or perform a warning process.
Next, the route calculation unit 306 (sea route map information selection unit) refers to weather information, for example, wave information, and removes the route that may pass through the danger zone from the selected route information, or Perform warning processing.

  For example, when there is a request for route information from the ship 1 or the wireless communication terminal 2 to the destination, the route calculation unit 306 (sea route map information selection unit) selects the route information as described above, Remove dangerous routes or process warnings, and for example, from the ship information and the state of the oil supply obtained from the state of the ship and fuel consumption information, you cannot pass through the destination or waypoint, or return to the departure place If it is determined that this is not the case, the route information can be provided in a state of alerting. In addition, when the route information to the destination does not exist, the route calculation unit 306 (sea route map information selection unit) can only select the route information in the vicinity of the ship.

Although not shown in the figure, there is no mobile phone network base station on the sea, so there is a high risk of being out of the communication range if it goes too far offshore. Therefore, the route calculation unit 306 (sea route map information selection unit) ensures the minimum safety by distributing the minimum route information that can be safely navigated at the time of the first route information distribution to the wireless communication terminal 2. can do.
When the wireless communication terminal 2 is within the communication range of the mobile phone network, the route calculation unit 306 (sea route map information selection unit) always replaces the route information with the latest information and transmits the latest route information. Can do.

  Further, when the user gets off the vehicle 1 and gets on the ship 4, as described above, the boarding determination processing unit 303 determines that the user carrying the wireless communication terminal 2 is on the ship 4 and calculates the route. The mode of the route setting of the unit 306 is switched from land navigation to marine navigation. By doing so, the route calculation unit 306 (sea route map information selection unit), based on the current position of the wireless communication terminal 2 (current position of the ship 4), route information corresponding to the ship information (particularly the amount of drainage of the ship). Can be searched and selected.

  Conversely, when it is determined that the user has unloaded the ship 4 and has boarded the vehicle 1, as described above, the boarding determination processing unit 303 determines that the user carrying the wireless communication terminal 2 has boarded the vehicle 1. Then, the route setting mode of the route calculation unit 306 is switched from maritime navigation to land navigation. In this way, the route calculation unit 306 can calculate route information based on the current position of the wireless communication terminal 2 (current position of the vehicle 1).

<Route notification unit 307>
The route notification unit 307 transmits the route information or the route guide information calculated by the route calculation unit 306 to the wireless communication terminal 2 via the communication unit 32.
The user can continue route guidance using the wireless communication terminal 2 even when walking or using public transportation after getting off the vehicle 1.
Further, even when the user gets off the vehicle 1 and gets on the ship 4, as described above, the route setting mode of the route calculation unit 306 is switched from land navigation to marine navigation. As described above, 306 (sea route map information selection unit) calculates route guidance information, and the route notification unit 307 wirelessly communicates the route guidance information calculated by the route calculation unit 306 via the communication unit 32. Transmit to terminal 2.
As described above, even when the user gets on the ship 4 after getting off the vehicle 1, the wireless communication terminal 2 can continue route guidance (route guidance).
On the contrary, even when the user gets on the vehicle 1 after disembarking from the ship 4, the wireless communication terminal 2 can continue route guidance (road guidance).

  As described above, the embodiments of the functional units of the navigation system 100 according to the present invention have been described based on the configurations of the wireless communication terminal 2 and the server system 3. However, the embodiment of each functional unit included in the server system 3 of the present invention is distributed and executed by a single computer or a large number of computers that are located in one place or distributed in several places and are interconnected by a communication network. Can be deployed. It can also be configured using a plurality of virtual computers on the cloud.

Each function of the server system 3 can be executed by any computer. Therefore, a person skilled in the art can appropriately design which computer the functions of the server system 3 are assigned to.
For example, the server system 3 may be a server system including, for example, a Web server, an application server, a database server, and a plurality of servers.
In this case, for example, the login processing unit 301 and the route notification unit 307 are used as a Web server, the current position information processing unit 302, the boarding determination processing unit 303, the navigation history creation / updating unit 304 are used as an application server, and a route information creation / updating unit. 305 and the route calculation unit 306 may be executed by a database server.

(Operation of the navigation system 100)
The configuration of the navigation system 100 has been described above. Next, the operation of the navigation system 100 while the user is on the ship 4 will be described. FIG. 6 is a flowchart showing the flow of the sea route guidance process of the navigation system 100.

The sea route guidance process of the navigation system 100 will be described with reference to FIG.
In step S101, the wireless communication terminal 2 (connection processing unit 101) transmits a login request (connection request) to the server system 3, and transmits the current position, the current time, and the like.

  In step S <b> 301, the server system 3 (login processing unit 301) performs connection processing with the wireless communication terminal 2, and displays a connection history record for managing the current position and current time received from the wireless communication terminal 2. Create in area 314.

  In step S102, the wireless communication terminal 2 (connection information acquisition unit 203) determines whether the user carrying the wireless communication terminal 2 is on the vehicle 1 or on the ship 4 via the short-range wireless unit 26. The boarding / boarding state indicating, is acquired.

  In step S <b> 103, the wireless communication terminal 2 (connection information acquisition unit 203), based on the boarding / boarding state acquired via the short-range wireless unit 26, the vehicle information, the vehicle state, or the user is on board the ship 4. In this case, the ship information acquired from the ship 4, its reliability, and the state of the ship are transmitted to the server system 3 via the wireless unit 22. Here, it is assumed that it is a boarding state.

  In step S302, the server system 3 (boarding determination processing unit 303) determines that the user carrying the wireless communication terminal 2 has boarded the ship 4, and sets the route setting mode of the route calculation unit 306 to marine navigation. Switch.

  In step S <b> 104, the wireless communication terminal 2 (position information update unit 202) transmits the current position information, current time information, ship state, and the like of the wireless communication terminal 2 to the server system 3.

In step S303, the server system 3 (current position information processing unit 302), the user ID transmitted from the wireless communication terminal 2 (position information update unit 202), the current position information of the wireless communication terminal 2, the current time information, the ship's Update the status etc. in the connection history record.
In addition, the server system 3 (current position information processing unit 302) transmits the wireless communication terminal 2 in the storage unit 21 while out of the communication range of the wireless communication terminal 2 transmitted from the wireless communication terminal 2 (position information update unit 202). Receives location information, etc., recorded in the work area all at once, and additionally updates the connection history record.

  In step S304, the server system 3 (route calculation unit 306) searches for the route information corresponding to the ship information (particularly, the amount of drainage of the ship) based on the current position of the wireless communication terminal 2 (the current position of the ship 4). ,select.

  In step S305, the server system 3 (route calculation unit 306) refers to the current tide information, and removes a route that may be on the reef from the selected route information or issues a warning. I do.

  In step S306, the server system 3 (route calculation unit 306) refers to the current fishing gear installation information such as a stationary net and excludes the route that may pass over the fishnet from the selected route information. , Or perform a warning process.

  In step S307, the server system 3 (route calculation unit 306) refers to weather information, for example, wave information, so that a route that may pass through the danger zone is excluded from the selected route information, or Perform warning processing.

In step S <b> 308, the server system 3 (route notification unit 307) transmits the route guidance information calculated by the route calculation unit 306 (the nautical chart and the route information on which the ship 4 can navigate) via the communication unit 32 to the wireless communication terminal 2. Send to.
Thereafter, the process proceeds to step S303.

  In step S <b> 105, the wireless communication terminal 2 (route guidance unit 205) guides the navigation route information around the current position according to the drainage amount of the ship based on the route guidance information received from the server system 3. .

  In step S106, the wireless communication terminal 2 determines whether or not it is within the communication range of the mobile phone network. When the wireless communication terminal 2 is within the communication range of the mobile phone network (Yes), the process proceeds to step S104. When the wireless communication terminal 2 is outside the communication range of the mobile phone network (No), the process proceeds to step S107.

  In step S <b> 107, the wireless communication terminal 2 (position information update unit 202) records the user ID, current position information of the wireless communication terminal 2, current time information, ship state, and the like in the work area of the storage unit 21.

  In step S108, the wireless communication terminal 2 determines whether or not it is within the communication range of the mobile phone network. If the wireless communication terminal 2 is within the communication range of the mobile phone network (Yes), the process proceeds to step S109. When the wireless communication terminal 2 is outside the communication range of the mobile phone network (No), the process proceeds to step S107.

  In step S109, the wireless communication terminal 2 (position information update unit 202) uploads the position information and the like recorded in the work area while the wireless communication terminal 2 is outside the communication area of the mobile phone network to the server system 3.

In step S303, the server system 3 (current position information processing unit 302) collectively receives, from the wireless communication terminal 2, position information and the like recorded in the work area of the storage unit 21 by the wireless communication terminal 2 while out of the communication range, Update the connection history record.
Thereafter, the process proceeds to step S304.

  The navigation system 100 described above has the following effects.

  (1) According to the navigation system 100 of the above embodiment, based on the size of the ship 4 and the navigation trajectory of the ship received from the wireless communication terminal 2, the navigation route information that can be navigated for each size of the ship is created and updated. can do. By doing so, it is a system that can be installed in a wireless communication terminal such as a smartphone, instead of having a device that can receive AIS, a navigation system, and the like. Sea route map). Based on the size of the ship 4 received from the wireless communication terminal 2 and the current position of the wireless communication terminal 2 (current position of the ship 4), the navigation route information that can be navigated for each size of the ship can be updated.

(2) According to the navigation system 100 of the above-described embodiment, the navigation route information that can be navigated for each size of the ship is updated using the reliability of the information on the size of the ship as an input.
Thereby, for example, even if a wrong amount of drainage is input (declared) by a user's manual input, more appropriate route information can be updated based on the reliability of the information.

(3) According to the navigation system 100 of the above embodiment, the track level information is stored based on the past navigation record of the route information, and the route information creation / updating unit 305 can further navigate the route information for each size of the ship. Update the past navigation performance of.
As a result, for example, in the wireless communication terminal 2, a route with a high past performance record and a high record level can be displayed, for example, with a thick line. For example, as with a wide main road on land, it is safer for the user. The route can be shown effectively.

  (4) According to the navigation method of the above embodiment, similar to the navigation system 100 of (1), it can be mounted on a wireless communication terminal such as a smartphone instead of being equipped with a device capable of receiving AIS and a device such as a navigation system. With this system, it is possible to provide past route information (sea route map) according to the type of ship.

  (5) According to the navigation method of the above embodiment, similarly to the navigation system of (2), for example, even if a wrong amount of drainage is input (reported) by a user's manual input, the reliability of information More appropriate route information can be updated based on the degree.

  (6) According to the navigation method of the above embodiment, as in the navigation system 100 of (3), in the wireless communication terminal 2, a route with a high past record level and a high record level can be displayed, for example, with a thick line. For example, it is possible to effectively show a safer route to the user in the same manner as a wide main road on land.

The navigation system of the present invention can be executed by hardware or can be executed by software.
In other words, the functional configuration of FIGS. 2 and 3 is merely an example, and is not particularly limited. That is, it is sufficient that the server system 3 is provided with a function capable of executing a series of processes related to the navigation function of the present invention as a whole, and what functional block is used to realize this function is particularly shown in FIGS. The example is not limited to three.
In addition, one functional block may be constituted by hardware alone, software alone, or a combination thereof.

When a series of processing is executed by software, a program constituting the software is installed on a computer or the like from a network or a recording medium.
The computer may be a computer incorporated in dedicated hardware. The computer may be a computer capable of executing various functions by installing various programs.

  A recording medium including such a program is provided not only to the removable medium 31 distributed separately from the apparatus main body in order to provide the program to the user, but also to the user in a state of being incorporated in the apparatus main body in advance. Recording medium. The removable medium 31 is composed of, for example, a magnetic disk (including a floppy disk), a Blu-ray disk, an optical disk, a magneto-optical disk, or the like. The optical disk is composed of, for example, a CD-ROM (Compact Disk-Read Only Memory), a DVD (Digital Versatile Disk), or the like. The magneto-optical disk is configured by an MD (Mini-Disk) or the like. In addition, the recording medium provided to the user in a state of being preliminarily incorporated in the apparatus main body includes, for example, the storage unit 21 in FIG. 2 in which the program is recorded, the hard disk included in the storage unit 31 in FIG. .

DESCRIPTION OF SYMBOLS 100 Navigation system 1 Vehicle 2 Wireless communication terminal 20 Control part 201 Connection processing part 202 Location information update part 203 Connection information acquisition part 204 Route setting part 205 Route guide part 21 Storage part 22 Radio | wireless part 23 Sensor part 24 Display part 25 Input part 26 Short-range wireless unit 3 Server system 30 Control unit 301 Login processing unit 302 Current position information processing unit 303 Boarding determination processing unit 304 Navigation history creation update unit 305 Route information creation update unit 306 Route calculation unit 307 Route notification unit 31 Storage unit 311 User Information Area 312 Navigation Information Area 313 Navigation History Information Area 314 Connection History Information Area 315 External Information Area 316 Road Information / Sea Route Information Area 32 Communication Section 4 Ship

Claims (6)

A server system communicably connected to a wireless communication terminal,
The server system is
A radio unit;
A control unit;
A storage unit for storing navigation information that can be navigated for each size of the ship;
With
The controller is
A ship information receiving unit for receiving position information of the wireless communication terminal and information on the size of the ship from the wireless communication terminal carried by a user boarding the ship via the wireless unit;
Corresponding to the size of the ship, a navigation history creation update unit that creates navigation trajectory information consisting of time-series position information of the ship;
The navigation information creation / update unit for updating the navigation information stored in the storage unit and navigable for each size of the ship, with the navigation trajectory information created by the navigation history creation / update unit as input.
A server system comprising: The ship information receiving unit further includes:
Receiving the reliability of the ship size information from the wireless communication terminal;
The route information creation / updating unit further receives the navigation information created by the route information creation / updating unit corresponding to the size of the ship and the reliability of the information on the size of the ship, and the storage unit 2. The server system according to claim 1, wherein the route information that can be navigated for each size of the ship is updated. The storage unit further includes:
Along with the route information that can be navigated for each size of the ship, the record level based on the past navigation results of the route information is stored,
The navigation history creation update unit further includes:
The server system according to claim 1 or 2, wherein a performance level based on a past navigation record of navigation information that can be navigated for each size of the ship is updated. A server system that includes a wireless unit, a storage unit that stores navigation information that can be navigated for each size of the ship, and a control unit, that is communicably connected to a wireless communication terminal is stored in the storage unit. The route information creation and update method for updating the route information that can be navigated for each ship size,
By the control unit,
Ship information receiving step for receiving position information of the wireless communication terminal and information on the size of the ship from the wireless communication terminal carried by a user boarding the ship via the wireless unit;
Corresponding to the size of the ship, a navigation history creation update step of creating navigation trajectory information consisting of time-series position information of the ship;
The navigation information creation and updating step for updating the navigation information stored in the storage unit and navigable for each size of the ship, with the navigation trajectory information created in the navigation history creation and updating step as input.
A route information creation and update method comprising: The ship information receiving step further includes:
Receiving the reliability of the ship size information from the wireless communication terminal;
The route information creation / update step further includes the navigation information created by the navigation history creation / update step corresponding to the size of the ship and the reliability of the size information of the ship as inputs, and the storage unit 5. The route information creation and update method according to claim 4, wherein the route information that can be navigated for each ship size is updated. The storage unit further includes:
Along with the route information that can be navigated for each size of the ship, the record level based on the past navigation results of the route information is stored,
The route information creation update step further includes:
6. The route information creation / updating method according to claim 4 or 5, wherein a track record level based on a past track record of route information that can be navigated for each size of the ship is updated.

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