SMARTPHONE MARINE VESSEL LOCATION AND COLLISION AVOIDANCE SYSTEM AND METHODS OF USE

A smartphone marine vessel location system utilizes global positioning to determine the location and trajectory of marine vessels. When two marine vessels have a trajectory that will bring the vessels within a warning zone a trajectory alert is activated and when the two vessels enter into a warning zone, a collision warning is activated. An App on the smartphones may produce a display showing the location of the marine vessels and may produce the alerts when required. The smartphone may also communicate with other navigational system on the marine vessel to produce a display and alerts, such as through Bluetooth. The location of marine vessels may be acquired through the App, through a crowd-sourcing application, and/or through a carrier sourced location.

BACKGROUND OF THE INVENTION

Field of the Invention

The invention relates to a smartphone marine vessel location system that produces alerts or warning to prevent collision of marine vessels.

Background

Marine vessels, and especially recreational marine vessels rely on visual detection of other marine vessels to avoid collision. The waterways are becoming more and more congested making it difficult to navigate around all the other vessels. In addition, weather can change quickly on the water and dramatically reduce visibility which can make it difficult if not impossible to safely navigate to avoid other marine vessels.

SUMMARY OF THE INVENTION

The invention is directed to a smartphone marine vessel location system that can provide an alerts and warnings to avoid collision between marine vessels. An exemplary smartphone marine vessel location system utilizes the global positioning system (GPS) of a smartphone on a marine vessel to track the location and determine a trajectory of said marine vessel. The location of a marine vessel may be accurate within about 4.9 m (16 ft) radius under open sky using the GPS system of a smartphone. An exemplary smartphone marine vessel location system may include an App, or application software, that provides a display of the location of the marine vessel and other marine vessels. The App may also track and monitor direction and speed, or trajectory of movement of the vessels. The App may provide a trajectory alert when two vessels have a trajectory that will bring them within warning zone distance of each other, such as within about 500 ft, within about 300 ft, within about 200 ft, within about 100 ft, within about 50 ft and any range between and including the distances provided. An initial trajectory alert may be provided when the vessels have a trajectory to bring them within a warning zone distance and a collision warning may be provided when the vessels move within a warning zone distance. The app may automatically track the location of a marine vessel when the smartphone owner boards a marine vessel, as determined by GPS and speed. When a person boards an aircraft, the speed of the aircraft may be above an upper threshold speed for marine craft and therefore their location may not be included in the system monitoring. When a user downloads the App, they may have to provide authorization for the App to monitor their location using the GPS function of the smartphone, regardless of the App being open by the user.

An exemplary smartphone marine vessel location system may utilize cellular communication between smart phones to enable tracking, monitoring and warning of collisions. Cellular communication may include the use of cellular towers and/or satellite communication and signal transmission.

An exemplary smartphone marine vessel location system utilizes smartphones on the marine vessels to track the location of the marine vessels. Smartphones on the marine vessels utilize GPS to provide updated location information to the smartphone marine vessel location system. Smartphones on the marine vessels receive location information from the smartphone marine vessel location system through GPS or GLONASS. Note that smartphone to smartphone communication may be through cellular service. An exemplary smartphone marine vessel location system may include a display showing the location of the marine vessel and the location of nearby marine vessels. An exemplary smartphone marine vessel location system may provide a trajectory alert or collision warning when the location and direction of travel of two or more marine vessels may result in a collision of the marine vessels. An exemplary smartphone marine vessel location system may interface with chartplotters or other onboard navigational systems to provide location information of the marine vessel and other marine vessels in the arear. The smartphone may communicate with the onboard navigational systems through conventional means, wired connection, or wireless communication, such as Bluetooth communication, through an onboard server and the like. The onboard navigational systems may require the user to synch their smartphone with the onboard navigational systems.

The location of the user’s marine vessel and other marine vessels may be determined through the GPS on each of the phones and through the App. In some cases, location and tracking by the system may require that all vessels have a user registered with the App. However, smartphone locations may be monitored by the wireless service provider and the smartphone marine vessel location system may utilize this information without requiring each person to have the App downloaded on their smartphone. Locations of marine vessels may be determined through Crowdsourced information and/or by carrier sources location information. The location of a marine vessel may be determined if anyone on the marine vessel has a smartphone and has enable GPS location.

Today cellular services reach well into coastal waters which is where most of the recreational marine traffic and marine congestion exist. Marine services can be created using location information attained over the cellular network from smartphones on vessels. Position, direction and speed of marine vessels can be determined from this information. Over time cellular services reach will extend even further into lakes, seas and oceans. It is not unreasonable to expect to have total global cellular coverage in the future. Location information can be captured via a Crowdsouced application or directly from cellular carriers.

The marine vessel location system and collision avoidance system may identify the number of smartphones that are within a proximity distance to each other and moving in the same trajectory as being on a single marine vessel. The marine vessel location system and collision avoidance system may then use the number of smartphones identified on a vessel for the display icon shape or size or color. In an exemplary embodiment, the icon size is increased when the number of smartphones identified as being on a single vessel is above a threshold number, such as more than two, more than five, more than 10, more than 100 and the like. A cruise ship may have hundreds of identified smartphones onboard, a sail boat or motor boat may only have 10 or less identified smartphones onboard, a personal watercraft, such as a kayak or small sailboat may have one or two smartphones identified thereon. The marine vessel location system and collision avoidance system may have a small, medium and large icon to identify relative size of the marine vessels on the display.

Applications

Crowdsourced Application: A custom application can be developed that runs on smartphones and shares real-time information with other smartphones running the application. Information such as type, size, name and location of vessel can be shared. The direction of travel and speed of the vessel can be calculated using this data collected over time. This data can be use in a number of ways as an aid to marine navigation, marine congestion management, collision warning, detection and rescue. The data collected with this application can be communicated to Chartplotters using industry standard digital interfaces for navigation equipment. Chartplotters can overlay this data on top of navigation charts showing the vessel name, position, direction and speed of all vessels in the area.

Carrier Sourced Location Information Application: A custom application can be developed in collaboration with cellular carriers to share location information of all smartphones. The application can determine if the smartphones are on water and if so will assume that it is on a vessel and will capture its location information. The direction of travel and speed of the vessel can be calculated using this location information collected over time. This data can be use in a number of ways as an aid to marine navigation, marine congestion management, collision warning, detection and rescue. The data collected with this application will be communicated to Chartplotters using industry standard digital interfaces for navigation equipment. Chartplotters will overlay this data on top of navigation charts showing the position, direction and speed of all vessels in the area.

This information is particularly useful for the vessel’s navigator in planning and following a route. It will be extremely useful in poor weather conditions where visibility is limited and complimentary to radar and/or Automatic Identification System (AIS) systems. AIS is a tracking system that uses transponders on vessels. These transponders are extremely expensive and are rarely used in recreational vessels. AIS is mostly used in commercial shipping. Using smartphone location services as described above is a much more cost-effective system that can used by recreational boaters as well a commercial shipping.

A collision warning system can be built using the collected location information data of other ships to automatically notify a vessel’s operator of a nearby vessel. This warning system will be extremely useful in poor weather conditions where visibility is poor.

GPS-enabled smartphones are typically accurate to within a 4.9 m (16 ft.) radius under open sky.

The government provides the PGS signal in space with a global average user range error (URRE) of ≤0.006 m/sec over any 3-second interval, with 95% probability.

GPS enables automatic vehicle location and in-vehicle navigation systems that are widely used throughout the world today. By combining GPS position technology with systems that can display geographic information or with systems that can automatically transmit data to display screens or computers, a new dimension in surface transportation is realized.

Location Information is found using Global Navigation Satellite Systems such as GPS and GLONASS.

Crowdsourced information is the practice of obtaining information (data) by enlisting the services of a large number of people, either paid or unpaid, typically via the Internet.

Definitions

A marine vessel, as used herein, is any watercraft including but not limited to, a ship, a barge, a recreational boat including a motor boat, sailboat, jet-ski, kayak, canoe and the like.

A smartphone, as used herein is a personal electronic device that has cellular service and cellular interfacing and is used for communication with others smartphones through phone calls, and also has GPS. A smartphone may be portable in size such as mobile telephone or tablet computer. A smartphone may be a mobile telephone that has a size, length, width, or thickness, of no more than about about 250 mm or no more than 200 mm. A mobile telephone may have a phone number associated with it for receiving phone calls.

A Chartplotter is a device used in marine navigation that integrates Global Navigation Satellite System (GPS and GLONASS) location data with Electronic Navigational Charts (ENC) to show the position of a ship on a chart.

The International Electrotechnical Commission (IEC) has created a new standards suite for “Digital interfaces for navigational equipment within a ship”. This is known as IEC 61162 and included NMEA 0183, NMEA 2000 and LWE.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS

As shown inFIG.1, the exemplary smartphone marine vessel location system and collision avoidance system10utilizes smartphones,20,20′ and20″ on the marine vessels60,80, and90, respectively, to track the location and trajectory of the marine vessels. Smartphones on the marine vessels utilize GPS to provide updated location information to the smartphone marine vessel location system. Smartphones on the marine vessels receive location information from the smartphone marine vessel location system through GPS or GLONASS. Note that smartphone to smartphone communication may be through cellular service. An exemplary smartphone marine vessel location system may include a display showing the location of the marine vessel and the location of nearby marine vessels. As shown, the largest marine vessel60, a cruise ship, has a chartplotter70that receives information from a smartphone on board, such as the Captain’s or a dedicated smartphone for this purpose. The chartplotter shows the location of the first marine vessel60as well as the second marine vessel80and a third marine vessel90. The third marine vessel90is moving behind the first marine vessel and therefore is not a potential collision hazard. The second marine vessel however, a small sailboat has a trajectory into the warning zone40, and therefore a trajectory alert42is initiated. The chartplotter display shows the size of the marine vessels as a function of the number of smartphones identified as being onboard. The large cruise ship may have more than10smartphones identified by the system as being onboard and therefore is shown as a larger icon on the display. The recreational motor boat is shown as a medium sized icon as it may have less than10identified smartphones onboard and the small sailboat may be the smallest icon as it has two or less identified smartphones onboard. The communication signals shown have a weight to indicate the number of identified smartphones onboard as well. As shown, the smartphones may communicate with cell towers50,50′ or through satellites54,54′. Also note that smartphones with different carriers may provide input to the system, wherein the smartphone20″ on the third marine vessel90communicates through a wireless signal51with the first cell tower and the smartphone20′ on the second marine vessel80communicates through a wireless signal51′ a second cell tower50′. The App may receive input from a plurality of cell towers and/or satellites. The App may function through a database and receive all the location information and send out communications to the smartphones with the App installed.

The smartphone may have a chartplotter program, such as an App or other program for producing navigational displays and the smartphone marine vessel location system and collision avoidance system may interface with this chartplotter program to display the vessels on this chartplotter display. The two programs or Apps may be integrated to show navigational aids and also vessels on a single display on the smartphone. A navigational display may include waterway locations, land masses, navigational aids, water depths which may be used to determine routes.

Referring now toFIGS.2and3, a smartphone marine vessel location system10produces a display22, such as on a smartphone20that has the location of the user’s marine vessel, or a first marine vessel60and the location of a second marine vessel80and third marine vessel90. The display may show marine vessel icons46for the user’s marine vessel and icons for the other marine vessels as well as land mass icons48. The icons may be different colors, size or design to allow the user to quickly identify their marine vessel from other marine vessels. As shown the user’s icon is black and the other marine vessels are white. The warning zone40is also displayed on the display. As shown inFIG.2, the trajectory of the user’s marine vessel and the trajectory of the second marine vessel will bring the two vessels within the warning zone40. Therefore, a trajectory alert42has been activated, such as a display, or a sound emitted by the speaker30. As shown inFIG.3, the user’s vessel60and the second marine vessel80have entered into a warning zone40and a collision warning44has been activated. The smartphone has a marine vessel location system and collision avoidance system App26, a processor28and a GPS24to enable the function of the system. A smartphone has a wireless signal transceiver for communication with cellular devices, such as towers, or wi-fi from a server, such as in the home, Bluetooth, or satellites.