# US 2020/0286359 A1 · Monitoring System for a Water Environment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0286359 A1 - Document ID: US20200286359A1 - Status: Published application - Kind: A1 - Application number: 16/811,322 - Filed: 2020-03-06 - Published: 2020-09-10 - Earliest claimed: 2019-03-08 - Assignees: Punch Technologies, Inc. - Applicants: Punch Technologies, Inc. - Inventors: Gregory Brian Artzt; Carole Tobias; Charles Andrew Prisk - Web page: https://patentgrep.com/patent/US20200286359A1 ## CPC - G08B 21/088: {by monitoring a device worn by the person, e.g. a bracelet attached to the swimmer} - G08B 25/016: {Personal emergency signalling and security systems (emergency non-personal manually actuated alarm activators G08B25/12)} - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS ## Abstract A monitoring system with one or more wearable devices and an alert station. The wearable device comprises sensors to detect conditions of the wearer and to transmit signals to the alert station. The alert station is configured to declare an emergency upon the occurrence of various events. ## Claims ### Claim 1 A system to monitor a user at a water environment, the system comprising: a wearable device configured to be worn by the user, the wearable device comprising: an input button; a first sensor that detects water; and a second sensor that detects one or more characteristics of a fall; an alert station configured to receive signals from the wearable device, the alert station configured to declare an emergency in each of the following situations: the alert station receives a signal from the wearable device that the input button has been activated; the alert station receives a first signal from the wearable device that the first sensor detects the water; the alert station receives a second signal from the wearable device that the second sensor has detected one or more characteristics of a fall and the alert station does not receive a heartbeat signal from the wearable device or less than a predetermined number of the heartbeat signals within a predetermined period of time after receiving the second signal. ### Claim 2 (depends on 1) The system of claim 1, wherein the wearable device comprises an exterior housing that extends around the second sensor and with the input button being exposed on the exterior housing. ### Claim 3 (depends on 1) The system of claim 1, wherein the alert station comprises a speaker to emit sound when an emergency is declared. ### Claim 4 (depends on 1) The system of claim 1, wherein the wearable device is configured to transmit the heartbeat signals to the alert station at regular time intervals. ### Claim 5 (depends on 1) The system of claim 1, wherein the wearable device is configured to transmit the signals to the alert station using LoRa signals. ### Claim 6 (depends on 1) The system of claim 1, wherein the alert station is configured to determine that there is no emergency upon receiving the heartbeat signal within the predetermined period of time after receiving the second signal from the wearable device. ### Claim 7 (depends on 1) The system of claim 1, wherein the wearable device is a first wearable device and further comprising a second wearable device that comprises an input button, a first sensor to detect that the wearable device is in the water, and a second sensor that detects that the user has fallen. ### Claim 8 (depends on 1) The system of claim 1, wherein the wearable device further comprises a control circuit configured to determine that the wearable device is in water based on readings from the first sensor and configured to determine that the user has fallen based on readings from the second sensor. ### Claim 9 (depends on 1) The system of claim 1, wherein the alert station further comprises a control circuit configured to determine that the wearable device is in water based on readings from the first sensor and configured to determine that the user has fallen based on readings from the second sensor. ### Claim 10 A system to monitor a user at a water environment, the system comprising: a wearable device configured to be worn by the user, the wearable device comprising: a housing that extends around and forms an interior space; an accelerometer positioned in the interior space; a water sensor attached to the housing; a wearable device control circuit positioned in the interior space; and a wearable device communication circuit configured to transmit signals; an alert station configured to be positioned in proximity to the water environment, the alert station comprising: a communications circuit configured to receive the signals from the wearable device; an alert station control circuit configured to declare an emergency that the user is in danger in each of the following situations: the user is in the water based on signals received from the wearable device indicating that the water sensor detects the water; the user has fallen based on signals received from the wearable device indicating that the accelerometer has detected a fall and that a heartbeat signal has not been received or a limited number of the heartbeat signals have been received from the wearable device within a predetermined period of time after receiving the signals indicating the fall. ### Claim 11 (depends on 10) The system of claim 10, further comprising a wearable device control circuit positioned in the interior space and configured to determine that the user has fallen based on signals from the accelerometer and to determine that the user is in the water based on signals from the water sensor. ### Claim 12 (depends on 10) The system of claim 10, wherein the alert station control circuit is configured to determine that the user has fallen based on signals from the accelerometer and to determine that the user is in the water based on signals from the water sensor. ### Claim 13 (depends on 10) The system of claim 10, wherein the communications circuit of the wearable device is configured to transmit signals to the alert station using LoRa signals. ### Claim 14 (depends on 10) The system of claim 10, further comprising an input button on the housing and wherein the alert station control circuit is configured to declare an emergency that the user is in danger upon receiving a signal from the wearable device that the input button has been activated. ### Claim 15 A method of monitoring a user that is wearing a wearable device around water, the method comprising: receiving heartbeat signals at regular intervals from the wearable device indicating that the wearable device is within range; receiving a first signal from the wearable device indicating that the user has activated an input button; receiving a second signal from the wearable device indicating that the wearable device is in the water; receiving a third signal from the wearable device indicating that the user has fallen; and declaring an emergency for each of first, second, and third situations with the first situation comprising receiving the first signal, the second situation comprising receiving the second signal, and the third situation comprising receiving the third signal and not receiving a heartbeat signal or receiving a limited number of the heartbeat signals within a predetermined time after receiving the third signal. ### Claim 16 (depends on 15) The method of claim 15, further comprising receiving each of the heartbeat signals, the first signal, the second signal, and the third signal within a LoRa frequency range.