Methods for emergency visualization are disclosed. The methods include a computer-implemented method for interactive emergency visualization that includes receiving a notification concerning an incident associated with a multi-floor structure, requesting location information from a user device geographically associated with the multi-floor structure, and receiving, in response to the request, a beacon identifier from the user device, the beacon identifier being associated with a beacon disposed within the multi-floor structure. The method also includes determining on which floor of the multi-floor structure the user device is located based on the beacon identifier and stored information indicating the location of the beacon and displaying a graphical map of the multi-floor structure and information indicating the specific floor on which the user device is located.

In one embodiment, an apparatus includes a processor for processing a plurality of radio frequency chains at a wireless device in a block based modulation environment, recording subcarrier phases and differences between the subcarrier phases, and using the subcarrier phase differences to construct a feature vector for use in angle of arrival calculated positioning of a mobile device, and memory for storing the subcarrier phases and the feature vector.

This application relates to reporting and monitoring a location of a mobile device. Disclosed is an attendance recording service in which when an employee requests attendance recording using a mobile application installed in a smartphone, the smartphone communicates with a server and records clock-in and clock-out of the employee. When the employee selects an attendance recording request button from the mobile application, an analysis is made as to whether the employee is positioned in a workplace, and clock-in or clock-out of the employee is recorded only when it is determined that the employee is positioned in the workplace, thereby maintaining reliable attendance recording.

This application relates to reporting and monitoring a location of a mobile device. Disclosed is an attendance recording service in which when an employee requests attendance recording using a mobile application installed in a smartphone, the smartphone communicates with a server and records clock-in and clock-out of the employee. When the employee selects an attendance recording request button from the mobile application, an analysis is made as to whether the employee is positioned in a workplace, and clock-in or clock-out of the employee is recorded only when it is determined that the employee is positioned in the workplace, thereby maintaining reliable attendance recording.

Systems and methods for transmitting beacon messages are described. A beacon message is transmitted from a first beacon device and broadcast to an area within a transmission range of the first beacon device. A mobile device receives and stores the message. When the mobile device is out of the range of the first beacon device and within the range of a second beacon device, the message is transmitted to the second beacon device and broadcast by the second beacon device.

Systems and methods for transmitting beacon messages are described. A beacon message is transmitted from a first beacon device and broadcast to an area within a transmission range of the first beacon device. A mobile device receives and stores the message. When the mobile device is out of the range of the first beacon device and within the range of a second beacon device, the message is transmitted to the second beacon device and broadcast by the second beacon device.

A collision warning system configured to provide a warning or alert to workers in environments where collisions with hazards (e.g., moving vehicles and equipment, or fixed hazards) may occur. The system includes a hazard node including a transmitter for emitting a beacon, and a body worn device including a receiver for receiving the beacon, a controller operably coupled to the receiver, and an indicator operably coupled to the controller.

A collision warning system configured to provide a warning or alert to workers in environments where collisions with hazards (e.g., moving vehicles and equipment, or fixed hazards) may occur. The system includes a hazard node including a transmitter for emitting a beacon, and a body worn device including a receiver for receiving the beacon, a controller operably coupled to the receiver, and an indicator operably coupled to the controller.

Provided are a system and method for positioning a mobile device by using a Bluetooth signal, and more particularly, to a system and method for positioning a mobile device by using a Bluetooth signal, in which a location of a user carrying a mobile device is effectively determined by using the mobile device receiving a Bluetooth signal, and a method of positioning the mobile device.

Provided are a system and method for positioning a mobile device by using a Bluetooth signal, in which a location of the mobile device may be more accurately determined by considering a Bluetooth signal receiving environment of the mobile device when providing a service and method of determining a location of the mobile device by using a Bluetooth signal.

A user's terminal device and a service management server can provide specific service content associated with a registered beacon service to a user. In an embodiment, the terminal device registers at least one beacon service at a user's request and sends information about the registered beacon service to the service management server. Then the terminal device receives first beacon identification information corresponding to the registered beacon service from the service management server and stores the first beacon identification information. Further, when a beacon signal containing second beacon identification information is received from a beacon device, the terminal device compares the second beacon identification information with the first beacon identification information. If both of identification information are identical with each other, the terminal device offers service content corresponding to the second identification information.