A method includes identifying a first user device potentially associated with a biohazard and identifying a geographic area associated with the biohazard based on previous location information of the first user device. The method further includes identifying a another user device potentially associated with the biohazard based on the geographic area associated with the biohazard and previous location information of the other user device. The method further includes issuing a safety notification to the other user device, where the safety notification includes one or more of the geographic area associated with the biohazard, a safety status request, a safety status level of the first user device, a subset of the previous location information of the first user device, and a subset of the previous location information of the other user device.

A fluid pit safety system is disclosed to prevent drowning incidents in a fluid pit filled with a fluid. The system comprises a plurality of sensors spatially disposed adjacent the fluid pit, a perimeter detection sub-system defining a perimeter arranged around an edge of the fluid pit, and a rescue device arranged in the fluid pit. The plurality of sensors are configured to detect a change in fluid height in the fluid pit. The perimeter detection sub-system is configured to detect a disruption in the perimeter. The rescue device is configured to move towards a surface of the fluid in the fluid pit in response to the plurality of sensors detecting the change in the fluid height in the fluid pit and the perimeter detection sub-system detecting the disruption in the perimeter.

A fluid pit safety system is disclosed to prevent drowning incidents in a fluid pit filled with a fluid. The system comprises a plurality of sensors spatially disposed adjacent the fluid pit, a perimeter detection sub-system defining a perimeter arranged around an edge of the fluid pit, and a rescue device arranged in the fluid pit. The plurality of sensors are configured to detect a change in fluid height in the fluid pit. The perimeter detection sub-system is configured to detect a disruption in the perimeter. The rescue device is configured to move towards a surface of the fluid in the fluid pit in response to the plurality of sensors detecting the change in the fluid height in the fluid pit and the perimeter detection sub-system detecting the disruption in the perimeter.

A crash detection system for a vehicle comprises first and second batteries and a computational system comprising a processor and a non-transitory computer-readable medium. First and second antennas are both in electronic communication with the computational system and powered by one of the batteries, with the antennas configured to independently wirelessly communicate with an external network. A microphone powered by one of the batteries and in electronic communication with the computational system. The microphone continuously receives sound waves in real time and transmits sound signals to the processor. The processor monitors properties of the sound waves within the sound signals, compares the properties to thresholds stored in the non-transitory computer-readable medium, determines if the vehicle has been involved in a collision if at least one of the properties crosses the respective threshold, and communicates with the external network to report the collision with one of the antennas.

A crash detection system for a vehicle comprises first and second batteries and a computational system comprising a processor and a non-transitory computer-readable medium. First and second antennas are both in electronic communication with the computational system and powered by one of the batteries, with the antennas configured to independently wirelessly communicate with an external network. A microphone powered by one of the batteries and in electronic communication with the computational system. The microphone continuously receives sound waves in real time and transmits sound signals to the processor. The processor monitors properties of the sound waves within the sound signals, compares the properties to thresholds stored in the non-transitory computer-readable medium, determines if the vehicle has been involved in a collision if at least one of the properties crosses the respective threshold, and communicates with the external network to report the collision with one of the antennas.

Methods, systems, and computer readable media can be operable to facilitate the output of communications to additional emergency contacts upon the occurrence of an alarm triggering event. A central device may be configured with one or more data profiles associated with one or more emergency contacts, and each data profile may include emergency contact information associated with one or more methods for communicating a message to each respective emergency contact. When the device identifies an alert trigger within one or more communications passing through the device, the device may output one or more emergency messages to one or more of the emergency contacts according to the one or more stored data profiles.

Methods, systems, and computer readable media can be operable to facilitate the output of communications to additional emergency contacts upon the occurrence of an alarm triggering event. A central device may be configured with one or more data profiles associated with one or more emergency contacts, and each data profile may include emergency contact information associated with one or more methods for communicating a message to each respective emergency contact. When the device identifies an alert trigger within one or more communications passing through the device, the device may output one or more emergency messages to one or more of the emergency contacts according to the one or more stored data profiles.

A method is disclosed for driving an emergency reaction system within a moving motor vehicle carrying at least one vehicle occupant. The method includes monitoring health conditions of the vehicle occupant. The method also includes determining whether the health conditions are below a critical threshold and, if so, continuing to monitor the health conditions of the vehicle occupant. If the health conditions exceed the critical threshold, an emergency alert is issued without waiting for the motor vehicle to stop, and an autonomous safe stop maneuver is performed if the motor vehicle is moving autonomously or includes an autonomous driving system and is allowed to operate automatically.

A method is disclosed for driving an emergency reaction system within a moving motor vehicle carrying at least one vehicle occupant. The method includes monitoring health conditions of the vehicle occupant. The method also includes determining whether the health conditions are below a critical threshold and, if so, continuing to monitor the health conditions of the vehicle occupant. If the health conditions exceed the critical threshold, an emergency alert is issued without waiting for the motor vehicle to stop, and an autonomous safe stop maneuver is performed if the motor vehicle is moving autonomously or includes an autonomous driving system and is allowed to operate automatically.

A method of and device for reducing energy consumption of a motion sensing device by reducing or avoid using function of device's internal GPS system when a predetermined condition is senses. The predetermined condition includes a predetermined state of motion or no-motion sensed. The motion sensing device includes Personal Emergency Response Systems.