# US 2022/0092958 A1 · Safety Warning System > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0092958 A1 - Document ID: US20220092958A1 - Status: Published application - Kind: A1 - Application number: 17/541,804 - Filed: 2021-12-03 - Published: 2022-03-24 - Earliest claimed: 2018-04-26 - Assignees: Hazardtech Pty Ltd - Applicants: Hazardtech Pty Ltd - Inventors: David Fellows - Web page: https://patentgrep.com/patent/US20220092958A1 ## CPC - G08B 6/00: Tactile signalling systems, e.g. tactile personal calling systems - G08B 21/02: Alarms for ensuring the safety of persons - G01C 21/3461: {Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types or segments such as motorways, toll roads or ferries} - G06F 1/163: {Wearable computers, e.g. on a belt} - G08B 21/0453: {worn on the body to detect health condition by physiological monitoring, e.g. electrocardiogram, temperature, breathing (detecting, measuring or recording for diagnostic purposes A61B5/00)} - G08B 27/001: {Signalling to an emergency team, e.g. firemen} - G08G 1/052: with provision for determining speed or overspeed {(speed measuring in general G01P)} - H04W 4/021: Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93}) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A safety warning system including at least one sensor or sensor system to detect an abnormal safety situation relative to a safety zone, at least one network transmitter associated with the at least one sensor or sensor system, at least one controller associated with the at least one sensor or sensor system to receive information from the at least one sensor or sensor system and issue an alert signal based on a comparison of the information received and a safety setpoint, the alert signal issued over a safety zone network, and at least one wearable unit provided for each user in the safety zone, the wearable unit providing at least a tactile alert to the user based on the comparison to warn the user of the occurrence of an abnormal safety situation within the safety zone. ## Claims ### Claim 1 A safety warning system including at least one sensor or sensor system to detect an abnormal safety situation relative to a safety zone, at least one network transmitter associated with the at least one sensor or sensor system, at least one controller associated with the at least one sensor or sensor system to receive information from the at least one sensor or sensor system and issue an alert signal based on a comparison of the information received and at least one of a safety setpoint, the alert signal issued over a safety zone network, and at least one wearable unit provided for each user in the safety zone, the wearable unit providing at least a tactile alert to the user based on the comparison to warn the user of an occurrence of an abnormal safety situation within the safety zone; wherein the at least tactile alert to the user is in the form of a haptic or vibration alert based on alerting the user through a sense of touch; and wherein the at least one network transmitter establishes a self-contained safety zone network limited to the safety zone and which is independent of both outside infrastructure and access to external communications platforms for operation. ### Claim 2 (depends on 1) A safety warning system as claimed in claim 1 wherein the at least one sensor or sensor system is configured to sense a speed or velocity of each of at least one vehicle relative to the safety zone and one or more safety setpoints is provided in terms of a speed limit, a detection of a vehicle travelling above the one or more safety setpoints triggering the issue of an alert signal. ### Claim 3 (depends on 1) A safety warning system as claimed in claim 1 wherein the at least one wearable unit is configured to provide the tactile alert to the user at different levels depending upon a nature of the abnormal safety situation and/or depending upon a location of the user within the safety zone. ### Claim 4 (depends on 1) A safety warning system as claimed in claim 1 wherein the safety zone network is a network which is limited to the particular safety zone. ### Claim 5 (depends on 1) A safety warning system as claimed claim 1 wherein the at least one controller associated with the at least one sensor or sensor system is a sensor controller directly associated with each at least one sensor or sensor system in a sensor unit so that the comparison of information received in a safety setpoint can be accomplished at the sensor unit with alerts distributed by at least one of the sensor units. ### Claim 6 (depends on 1) A safety warning system as claimed in claim 1 wherein the system includes a number of sensor units, each sensor unit including at least one sensor and a sensor controller, and at least one network controller associated to each of the sensor units to receive information from each sensor unit and process information to ascertain whether an alert is required and then issue the alert via at least one network transmitter. ### Claim 7 (depends on 1) A safety warning system as claimed in claim 1 wherein the alerts are issued in real time based on a real time occurrence of abnormal safety situations occurring in or relative to the safety zone. ### Claim 8 (depends on 1) A safety warning system as claimed in claim 1 wherein the at least one sensor is provided in a mobile sensor unit. ### Claim 9 (depends on 1) A safety warning system as claimed in claim 1 wherein the at least one sensor is positioned to monitor a particular area in relation to the safety zone. ### Claim 10 (depends on 1) A safety warning system as claimed in any claim 1 wherein a number of sensors is used to create a geo-fence about the safety zone and a location or positioning system is used to allow the system to pinpoint the location of users through their wearable units. ### Claim 11 (depends on 10) A safety warning system as claimed in claim 10 wherein an alert is issued dependent upon a particular location of users within the safety zone. ### Claim 12 (depends on 11) A safety warning system as claimed in claim 11 wherein information within the system of the present invention is transmitted to storage for reporting or logging purposes. ### Claim 13 (depends on 1) A safety warning system as claimed in claim 1 wherein one or more of a repeater station is provided within the safety zone in order to ensure that the alert signal reaches all of the wearable units. ### Claim 14 (depends on 1) A safety warning system as claimed in claim 1 wherein each wearable unit has an input interface as well as providing the tactile alert as an input interface to allow the user to confirm receipt of the alert. ### Claim 15 (depends on 1) A safety warning system as claimed in claim 1 wherein the wearable unit includes a location receiver allowing the location of the user to be ascertained through location of their wearable unit. ### Claim 16 (depends on 1) A safety warning system as claimed in claim 1 wherein each wearable unit is synced or linked with the safety zone network to ensure that each wearable unit within the safety zone will receive any alerts that are issued that are relevant to the particular user. ### Claim 17 (depends on 1) A safety warning system as claimed in claim 1 wherein the wearable unit issues a signal to the system controller or sensor controllers in order to establish that each wearable unit within the safety zone is operational. ### Claim 18 (depends on 1) A safety warning system as claimed in claim 1 wherein each wearable unit is uniquely identified within the safety zone network to identify each particular wearable unit and thereby, identify each user. ### Claim 19 (depends on 1) A safety warning system as claimed in claim 1 wherein the sensor unit controller and/or network controller identify the existence of an abnormal safety situation, but also ascribe to each wearable unit, a level of risk from that abnormal safety situation and then the alerts are issued accordingly. ### Claim 20 (depends on 1) A safety warning system as claimed in claim 1 wherein the wearable unit also monitors a health or condition of the user and/or an environment in which the user is operating.