A system and method of acquiring and maintaining location information associated with traffic apparatus deployed in connection with a traffic flow monitoring or regulation system are disclosed. In some implementations, an apparatus identifier may distinguish a particular traffic apparatus from others that are deployed in proximity, and a functional identifier may define a functionality of the particular traffic apparatus; positioning, orientation, and movement or acceleration data may also be provided for real-time or near real-time system applications. These apparatus data may be used to derive and to maintain a record of location data associated with each traffic apparatus deployed in a particular application.

A method for reconstructing the map of an environment (20) surrounding a wireless device (100), the environment (20) being equipped with one or more radio frequency tags (1) set in a number dependent on the level of detail to be obtained in the reconstruction, the method including the steps of: receiving identification and localization data of the one or more radio frequency tags (1) over a wireless connection by at least one wireless receiver (3) of the wireless device (100); storing the identification and localization data of the one or more radio frequency tags (1) into a filing and/or storage component (5,6) by a processor (2) of the wireless device (100); and providing on an output component (7) of the wireless device (100) at least one map of the environment (20) built on the basis of the identification and localization data of the radio frequency tags (1).

A method for reconstructing the map of an environment (20) surrounding a wireless device (100), the environment (20) being equipped with one or more radio frequency tags (1) set in a number dependent on the level of detail to be obtained in the reconstruction, the method including the steps of: receiving identification and localization data of the one or more radio frequency tags (1) over a wireless connection by at least one wireless receiver (3) of the wireless device (100); storing the identification and localization data of the one or more radio frequency tags (1) into a filing and/or storage component (5,6) by a processor (2) of the wireless device (100); and providing on an output component (7) of the wireless device (100) at least one map of the environment (20) built on the basis of the identification and localization data of the radio frequency tags (1).

Systems and methods are disclosed herein that relate wireless device positioning based on cell portion specific Positioning Reference Signals (PRSs) by multiple Transmit Points (TPs) in a shared cell. In some embodiments, a method of operation of a TP in a cellular communications network is provided. The TP is one of multiple of non-co-located TPs of a shared cell that has a shared cell identifier. The method of operation of the TP comprises transmitting a PRS having at least one parameter that is a function of a cell portion identifier of the TP, where the at least one parameter comprises a frequency-shift of the PRS, a portion of a system bandwidth in which the PRS is transmitted, and/or a PRS sequence used for the PRS. By transmitting cell-portion-specific PRSs, the TPs in the shared cell enable wireless device positioning based on PRSs transmitted by the non-co-located TPs.

Beacon systems include a beacon including a transmitter, a processor, and a sensor for collecting sensor data, wherein the beacon broadcasts a beacon message comprising informational data based on a value of the sensor data and data regarding a minimum received signal strength for the relevance of the beacon message. The beacon system may include a receiving device, wherein the receiving device comprises a processor and an alarm adapted to be triggered by the beacon message, wherein the processor determines a relevance of the beacon message by comparing the minimum received signal strength for the relevance of the beacon message to an actual received signal strength of the beacon message, wherein, if the actual received signal strength is greater than or equal to the minimum received signal strength, the receiving device is within a range of relevance and the alarm is triggered.

Beacon systems include a beacon including a transmitter, a processor, and a sensor for collecting sensor data, wherein the beacon broadcasts a beacon message comprising informational data based on a value of the sensor data and data regarding a minimum received signal strength for the relevance of the beacon message. The beacon system may include a receiving device, wherein the receiving device comprises a processor and an alarm adapted to be triggered by the beacon message, wherein the processor determines a relevance of the beacon message by comparing the minimum received signal strength for the relevance of the beacon message to an actual received signal strength of the beacon message, wherein, if the actual received signal strength is greater than or equal to the minimum received signal strength, the receiving device is within a range of relevance and the alarm is triggered.

Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.

Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.

A positioning system and method for a monorail train are disclosed. The system includes: a first beacon, laid on one side of an up-going rail; a second beacon, laid on one side of a down-going rail, the first beacon and the second beacon being laid asymmetrically; a first beacon antenna and a second beacon antenna, the first beacon antenna being provided at a front carriage of the monorail train, the second beacon antenna being provided at a rear carriage of the monorail train, and the first beacon antenna and the second beacon antenna being provided on two opposite sides of the monorail train; and a positioning device, configured to acquire beacon data read by the first beacon antenna and beacon data read by the second beacon antenna and to determine a running direction and position information of the monorail train according to the beacon data read by the first beacon antenna and the beacon data read by the second beacon antenna.

A positioning system and method for a monorail train are disclosed. The system includes: a first beacon, laid on one side of an up-going rail; a second beacon, laid on one side of a down-going rail, the first beacon and the second beacon being laid asymmetrically; a first beacon antenna and a second beacon antenna, the first beacon antenna being provided at a front carriage of the monorail train, the second beacon antenna being provided at a rear carriage of the monorail train, and the first beacon antenna and the second beacon antenna being provided on two opposite sides of the monorail train; and a positioning device, configured to acquire beacon data read by the first beacon antenna and beacon data read by the second beacon antenna and to determine a running direction and position information of the monorail train according to the beacon data read by the first beacon antenna and the beacon data read by the second beacon antenna.