A positioning method and a mobile terminal in order to improve track fitting precision, eliminate erroneous track determining, improve a positioning presentation effect, and automatically set a suitable positioning frequency. The method includes determining, by the mobile terminal, an expected journey L, where the expected journey is an expected value of a distance traveled by the mobile terminal between two consecutive times of positioning, obtaining a speed value v of the mobile terminal, adjusting a positioning frequency according to the expected journey L and the speed value v of the mobile terminal such that a deviation of a distance traveled by the mobile terminal between two consecutive times of positioning from the expected journey L is less than a specified threshold, and performing positioning according to an adjusted positioning frequency.

Embodiments relate generally to systems and methods for updating the location information for a gas detector device. A gas detector device may comprise a wireless scanner operable to receive information from one or more passive tags. In some cases, the passive tags may comprise location information. When the gas detector scans a passive tag, the location information stored on the gas detector may be updated accordingly. In some cases, the subsequent readings of the gas detector may be associated with the updated location information. In some cases, the passive tags may be located at critical areas within a facility, such as entrances or exits to locations.

Method and apparatus are disclosed for preventing damage to an object within a charging field of a wireless vehicle battery charger. An example vehicle includes a wireless vehicle battery charger having a charging field, a plurality of Bluetooth antennas, and a processor. The processor is configured to identify a location of an object using one or more of the plurality of Bluetooth antennas, and, responsive to determining that the object is within the charging field, disable the wireless vehicle battery charger.

An image processing apparatus includes a first reception section, a second reception section, an association processing section, an object detection section, and a process execution section. The first reception section receives image information acquired by an image sensor. The second reception section receives sound information that is acquired by one or plural directional microphones and that is generated for at least a partial region in a field of the image sensor. The association processing section associates the sound information with a pixel address of the image information indicating a position in the field. The object detection section detects, from the image information, at least a part of an object that is present in the field. The process execution section executes a predetermined process on the object on the basis of a result of the association performed by the association processing section.

The invention is directed to determining a position of a mobile device. An exemplary method comprises scanning a wireless signal associated with the mobile device; measuring a signal strength associated with the wireless signal; determining a timestamp associated with the measurement; and determining a position of the mobile device based on the signal strength measurement and the timestamp. The present invention is useful for both positioning a user of the mobile device and for locating an access point.

Multiple sensing network units are deployed in a venue. Each unit includes an overhead housing, and supports a plurality of electrically-powered sensor modules for sensing targets in the venue, and for generating target data indicative of the targets. Each unit preferably also includes a network communications module. Each module is interchangeably mounted in the housing. A power and data distribution system transmits network control data and electrical power to the sensor modules, and transmits the target data away from the sensor modules.

A server according to the present disclosure includes a communication interface and a controller. The controller receives, from a vehicle via the communication interface, received-radio-wave information indicating a state of a radio wave wirelessly received by the vehicle, and determines a position of the vehicle based on the received-radio-wave information using association information associating one or more positions with states of respective radio waves received at the one or more positions.

A method includes obtaining signal information based on wireless signals communicated between an electronic device and a target device. The method also includes obtaining motion information based on movement of the electronic device. The method further includes identifying first location information based on the signal information, the first location information indicating whether the target device is within a field of view (FoV) of the electronic device. Additionally, the method includes identifying second location information based on the motion information and the signal information, the second location information indicating whether the target device is within the FoV of the electronic device. The method also includes determining that the target device is within the FoV or outside the FoV of the electronic device based on at least one of the first location information or the second location information.

A system and method is disclosed for measuring time of flight to an object. A transmitter transmits an electromagnetic signal and provides a reference signal corresponding to the electromagnetic signal. A receiver receives the electromagnetic signal and provides a response signal corresponding to the received electromagnetic signal. A detection circuit is configured to determine a time of flight between the transmitter and the receiver based upon the reference signal and the response signal.

A system for controlling a device to track the location of the device is provided. The system identifies an initial location of the device. The system then identifies a plurality of areas having different sizes. Each area encompasses the identified location. For each of the areas, the system registers the area with a location provider to receive a notification when the location provider detects that the device has left the area. Upon receiving a notification that the device has left an area, the system may repeat the process of identifying the location and the areas and registering the areas to continue tracking the location of the device.