A mobile emergency perimeter system includes one or more fixed radio frequency (RF) sensors, and one or more moving RF sensors; a wireless mesh network coupling together each of the sensors; and a central processor system coupled to the wireless mesh network. The central processor system executes machine instructions stored on a computer-readable storage medium to control each of the RF sensors to receive time of arrival data for a RF signal transmitted by an emitter and received at each of the RF sensors, receive location information for each of the RF sensors and determine a three-dimensional (3-D) estimate of the geographical location of the emitter.

A method for monitoring vehicle motion using a mobile device associated with a user including collecting activity data at a mobile device associated with the user; determining a user activity state based on the activity data; determining motion data collection parameters associated with an operating state of the mobile device, based on the user activity state; and collecting motion data at the mobile device based on the motion data collection parameters.

There is a method of and a system for determining a location of a mobile device having both a module that is part of a terrestrial-based location system and a module that is part of a satellite-based global positioning system. The system comprises a remote system. The mobile device is configured to activate one of the location determining modules of the mobile device, where the type of either location determining module activated is selected according to a location module type datum in a message received by the mobile device from the remote system. The mobile device establishes a connection between the mobile device and the remote system and the remote system receives the determined location. A type of location determining module to be next used by the mobile device is determined or a period of time before the module device next determines it location is determined. A message is send from the remote system to the mobile device. The message comprises the determined type of location determining module to be next used by the mobile device and or the period of time before the module device next determines it location is determined.

Object tracking anti-jitter filtering systems and methods. A plurality of raw location points for a tracking tag attached to a tracked object is received. The raw location points are stored within a raw location points buffer. Raw location points within an averaging window are averaged to generate an averaged location point. The averaged location point is stored within an averaged location points buffer for use within the object tracking system.

A non-terrestrial network (NTN) can include a communication device and a network node. The communication device can determine a location of the communication device using global navigation satellite systems (GNSS) measurements. The communication device can further report location information based on the location to the network node. In some examples, reporting the location information includes reporting a tracking area identifier (TAI) associated with a tracking area (TA) in which the communication device is located.

An alert device for alerting an irregularity in equipment installed in an environment to users, including: a communication interface performing data communication with terminal devices respectively associated with the users; a controller controlling the communication interface; a state information obtainer acquiring state information indicating a state of the equipment; and a position information obtainer acquiring position information indicating a position of each user in the environment, wherein the controller: upon specifying that the equipment is in an irregular state based on the state information, transmits an irregularity notification, indicating that the equipment is in the irregular state, to the terminal devices; then detects a moving user to the irregular equipment based on the position information; and when the moving user is detected, transmits a cancellation notification indicating cancellation of the irregularity notification to a part or all of the terminal devices to which the irregularity notification is transmitted.

Systems, apparatus and methods implemented in algorithms, hardware, software, firmware, logic, or circuitry may be configured to process data and sensory input to determine whether an object external to an autonomous vehicle (e.g., another vehicle, a pedestrian, road debris, a bicyclist, etc.) may be a potential collision threat to the autonomous vehicle. The autonomous vehicle may be configured to implement interior active safety systems to protect passengers of the autonomous vehicle during a collision with an object or during evasive maneuvers by the autonomous vehicle, for example. The interior active safety systems may be configured to provide passengers with notice of an impending collision and/or emergency maneuvers by the vehicle by tensioning seat belts prior to executing an evasive maneuver and/or prior to a predicted point of collision.

Provided are methods and systems for identifying location of light sources from airborne aircraft. Light sources are ground based and may be low power lasers and other like devices. An aircraft equipped with a detecting module, such as a camera of a ground maneuver camera system, may defect light source output and associate this output with the relative position of the aircraft to the light source. This information may be analyzed together with aircraft location information (at the time of light source detection) to generate a light source location estimate. In some embodiments, other information, such as transmission from other aircraft and/or ground based nodes can be used. The estimate may be transmitted to a ground based node, such as a law enforcement unit. The data from multiple aircraft and/or ground based nodes may be aggregated to more precisely identify the light source location.

A method for monitoring vehicle motion using a mobile device associated with a user including collecting activity data at a mobile device associated with the user; determining a user activity state based on the activity data; determining motion data collection parameters associated with an operating state of the mobile device, based on the user activity state; and collecting motion data at the mobile device based on the motion data collection parameters.

A system and method is provided for registering outputs from a plurality of remote positional data sources, the system having: a plurality of positional data sources disposed on a plurality of units providing a plurality of types of positional data relative to at least one commonly tracked object held as a local positional data source; a processor disposed on a unit configured to process the positional data from each positional data source and apply a filter to the positional data; and the processor configured to weigh the positional data based on a probability of that a positional datum in the positional data is accurate and using weighted positional data to identify an absolute location of the commonly tracked object.