# US 12,004,119 B2 · System for accurate location estimation of a water vessel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,119 B2 - Document ID: US12004119B2 - Status: Granted - Kind: B2 - Application number: 17/685,352 - Filed: 2022-03-02 - Published: 2022-06-16 - Granted: 2024-06-04 - Earliest claimed: 2020-08-20 - Assignees: i911 International, Inc. - Applicants: i911 International, Inc. - Inventors: Christopher Ryan Bennett - Web page: https://patentgrep.com/patent/US12004119B2 ## CPC - H04W 64/006: {with additional information processing, e.g. for direction or speed determination} - G06F 18/214: Generating training patterns; Bootstrap methods, e.g. bagging or boosting - G06N 20/00: Machine learning - H04W 4/029: Location-based management or tracking services - H04W 4/14: Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD] - H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management - H04W 64/003: {locating network equipment} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS ## Abstract A system and a method are disclosed for enabling accurate estimation of a location of a water vessel. In an embodiment, a rescue system transmits a Short Message Service (SMS) message to a user device on the water vessel, the SMS message comprising a selectable option that, when selected, causes a location of the user device to be shared. Based on a selection by a user of the user device of the selectable option, the system receives a plurality of location coordinates from the user device at a plurality of respective times, each respective location coordinate describing a respective location of the user device at its respective time. The system computes an estimated location of the water vessel based on the plurality of location coordinates and an elapsed time between a current time and a time at which a last-received location coordinate was received. The system transmits the estimated location to a responder device. ## Claims ### Claim 1 A method for enabling accurate estimation of a location of a vessel, the method comprising: receiving, from a user device on the vessel, based on input by a user into an interface of the user device, a request that a location of the user device be shared with a responder service; based on receiving the request, receiving a plurality of location indicators of the user device at a plurality of respective times, each respective location indicator describing a respective location of the user device at its respective time; and transmitting an estimated location of the vessel to a responder device of the responder service, the estimated location based on the plurality of location indicators. ### Claim 2 (depends on 1) The method of claim 1, further comprising computing the estimated location of the vessel based on the plurality of location indicators and an elapsed time between a current time and a time at which a last received location indicator was received. ### Claim 3 (depends on 2) The method of claim 2, wherein computing the estimated location of the vessel is further based on one or more environmental factors comprising at least one of a current speed and direction measurement or a wind speed and direction measurement. ### Claim 4 (depends on 3) The method of claim 3, wherein the plurality of location indicators comprise location coordinates, and wherein computing the estimated location of the vessel comprises: inputting the plurality of location coordinates and the one or more environmental factors into a machine learning model, the machine learning model trained to output information corresponding to a projected location based on its inputs; and generating the estimated location based on the information output by the machine learning model. ### Claim 5 (depends on 1) The method of claim 1, further comprising: computing a future projected location of the vessel based on a travel time of a drone to the estimated location of the vessel; and transmitting, to the responder device, drone information comprising instructions for a drone to go to the future projected location of the vessel and to scan a radius from the future projected location of the vessel to locate the user device. ### Claim 6 (depends on 5) The method of claim 5, further comprising: receiving information indicating a drone has located the user device, the information comprising one or more location coordinates of the drone at a corresponding time of locating the user device; and transmitting to the responder device an updated location coordinate of the user device based on the one or more location coordinates of the drone at the corresponding time of locating the user device. ### Claim 7 (depends on 1) The method of claim 1, further comprising: receiving additional data associated with a location of the user device; determining whether the additional data indicates the location of the user device is within a threshold distance of a mobile cell tower of a responder vessel; and responsive to determining the additional location data is within the threshold distance to the mobile cell tower of the responder vessel, transmitting, to the responder device, updated location information. ### Claim 8 (depends on 1) The method of claim 1, wherein the receiving the plurality of location indicators from the user device is based on the location indicators being transmitted by the user device responsive to detecting a movement of the vessel. ### Claim 9 (depends on 1) The method of claim 1, wherein the receiving of the plurality of location indicators from the user device is based the location indicators being transmitted by the user device regardless of whether an acknowledgement message is received by the user device. ### Claim 10 (depends on 1) The method of claim 1, wherein the request is a Short Message Service (SMS) message. ### Claim 11 A non-transitory computer-readable medium comprising memory with instructions encoded thereon for enabling accurate estimation of a location of a vessel, the instructions, when executed, causing one or more processors to perform operations, the instructions comprising instructions to: receive, from a user device on the vessel, based on input by a user into an interface of the user device, a request that a location of the user device be shared with a responder service; based on receiving the request, receive a plurality of location indicators of the user device at a plurality of respective times, each respective location indicator describing a respective location of the user device at its respective time; and transmit an estimated location of the vessel to a responder device of the responder service, the estimated location based on the plurality of location indicators. ### Claim 12 (depends on 11) The non-transitory computer-readable medium of claim 11, the instructions further comprising instructions to compute the estimated location of the vessel based on the plurality of location indicators and an elapsed time between a current time and a time at which a last received location indicator was received. ### Claim 13 (depends on 12) The non-transitory computer-readable medium of claim 12, wherein computing the estimated location of the vessel is further based on one or more environmental factors comprising at least one of a current speed and direction measurement or a wind speed and direction measurement. ### Claim 14 (depends on 13) The non-transitory computer-readable medium of claim 13, wherein the plurality of location indicators comprise location coordinates, and wherein the instructions to compute the estimated location of the vessel comprise instructions to: input the plurality of location coordinates and the one or more environmental factors into a machine learning model, the machine learning model trained to output information corresponding to a projected location based on its inputs; and generate the estimated location based on the information output by the machine learning model. ### Claim 15 (depends on 11) The non-transitory computer-readable medium of claim 11, the instructions further comprising instructions to: compute a future projected location of the vessel based on a travel time of a drone to the estimated location of the vessel; and transmit, to the responder device, drone information comprising instructions for a drone to go to the future projected location of the vessel and to scan a radius from the future projected location of the vessel to locate the user device. ### Claim 16 (depends on 15) The non-transitory computer-readable medium of claim 15, the instructions further comprising instructions to: receive information indicating a drone has located the user device, the information comprising one or more location coordinates of the drone at a corresponding time of locating the user device; and transmit to the responder device an updated location coordinate of the user device based on the one or more location coordinates of the drone at the corresponding time of locating the user device. ### Claim 17 (depends on 11) The non-transitory computer-readable medium of claim 11, the instructions further comprising instructions to: receive additional data associated with a location of the user device; determine whether the additional data indicates the location of the user device is within a threshold distance of a mobile cell tower of a responder vessel; and responsive to determining the additional location data is within the threshold distance to the mobile cell tower of the responder vessel, transmit, to the responder device, updated location information. ### Claim 18 (depends on 11) The non-transitory computer-readable medium of claim 11, wherein the receiving the plurality of location indicators from the user device is based on the location indicators being transmitted by the user device responsive to detecting a movement of the vessel. ### Claim 19 (depends on 11) The non-transitory computer-readable medium of claim 11, wherein the receiving of the plurality of location indicators from the user device is based on the location indicators being transmitted by the user device regardless of whether an acknowledgement message is received by the user device. ### Claim 20 (depends on 11) The non-transitory computer-readable medium of claim 11, wherein the request is a Short Message Service (SMS) message.