A tire localization method for a vehicle, can include: matching a first Bluetooth module in each tire of the vehicle with a second Bluetooth module of a Bluetooth host in the vehicle; acquiring first data representing a received signal strength indication of a first radio frequency signal sent by the first Bluetooth module in each tire; acquiring an angle of arrival of the first Bluetooth module in each tire relative to the second Bluetooth module; and locating each tire based on the first data and the angle of arrival.

A ranging-type positioning system and a ranging-type positioning method based on crowdsourced calibration are provided. In a crowdsourcing stage, pedestrian dead reckoning (PDR) is performed based on readings of inertial measurement units on a mobile device, a particle filter (PF) is executed to reconstruct a path of the mobile device with map information of the target field, and FTM data records are collected. Then, a ranging model based on a neural network can be used to calibrate and inversely infer approximate locations of unknown base stations. The optimized ranging model can estimate estimated distances and standard deviations based on the FTM data records obtained in the crowdsourcing stage. In a positioning stage, a position of a to-be-positioned mobile device can be positioned by having the ranging model operated in cooperation with the PDR and the PF.

Provided herein are methods and systems for generating a model, mapping a monitored space, and used for augmenting the location and paths of devices path in the monitored space, using orientation and obstruction analysis. The disclosure comprises moving a device having a camera and one or more wireless transceiver through the monitored space, exchanging signal transmissions with one or more wireless transceivers present in the monitored space, and taking images, video sequences, or other optical readings. Either the mobile wireless device, the wireless transceivers, or both may have a non-isotropic transmission and reception characteristics, due to antenna structure, occlusions, other objects with radiation impact and/or the like. The images, videos, and/or optical readings, in addition to the received signal characteristics are stored and processed to generate the model, which one or more verification units, configured to verify the location objects or devices in the monitored space, may use.

A method determines a corrected distance between a mobile transceiver fastened to a vehicle and a fixed transceiver. The method includes: identification, among a set of predetermined path segments, of the segment on which the vehicle is currently found on the basis of the last position determined for this vehicle, then selection of a correction function specifically associated with the identified segment using a table that associates, with each path segment, a respective correction function, then execution of the identified correction function to obtain a current correction coefficient for correcting a raw distance computed from transmission and reception times of the radio signals exchanged between the fixed and mobile transceivers, then correction of the last raw distance computed using the current correction coefficient to obtain the corrected distance.

A method includes: a) triggering, at an instant tuj, an exchange of radio signals between a mobile transceiver fixed to the vehicle and a fixed transceiver; then b) computing a rough distance only from the transmission or reception instants of the exchanged radio signals; (c) constructing an estimated position of the vehicle at an instant t.sub.m; (d) correcting the computed rough distance, then using this corrected rough distance to correct the estimated position. This correction comprises: computing an apparent velocity movement v.sub.a0 of the vehicle towards the fixed transceiver; then adding a corrective term δd.sub.0 to the computed rough distance, which corrective term is computed from the following relation: δd.sub.0=v.sub.a0.Math.DT0, where DT0 is equal to the elapsed time between the instants tu.sub.j and t.sub.m.

A position measuring apparatus for positioning a mobile object includes a positioning control unit that determines a candidate area type of a position of the mobile object in accordance with an attribute of the mobile object and geospatial information, divides a candidate area corresponding to the candidate area type into a plurality of grids, specifies a grid in which the mobile object is estimated to be located from among the plurality of grids, and outputs a positioning solution of a carrier-phase based positioning calculation by an absolute position positioning unit, the positioning solution being obtained by using the grid specified.

Systems and methods for positioning assets over a wireless network are provided. In one embodiment, the method comprises: building, at a topology entity communicatively coupled to a wireless network a low-resolution spatial topology of said wireless network; selecting a list of a plurality of participating anchors for participating in a plurality of ranging events with a participating tag positionally associated with a designated asset; sending to the participating tag and to each of the participating anchors, an indication that a plurality of ranging events is to be executed therebetween; and executing, between the participating tag and each of the participating anchors, a ranging event of said plurality of ranging events; and computing, at a positioning engine a position of the participating tag and the designated asset based on a ranging information generated by the plurality of ranging events.

Provided is a positioning method of a user equipment performed by the user equipment, the method including receiving reference signals from at least three transmitters; calculating a first phase difference between reference signals received from transmitters that belong to a first transmitter pair; calculating a second phase difference between reference signals received from transmitters that belong to a second transmitter pair; calculating a first position coordinate based on a first conversion coefficient set and the first phase difference; determining an integer ambiguity of the second phase difference based on a second conversion coefficient set, the second phase difference, and the first position coordinate; and determining a position of the user equipment based on the integer ambiguity of the second phase difference.

A system is disclosed for managing waste services. The system may have a locating device configured to generate a signal indicative of a location of a service vehicle on a roadway, a communication device, and a controller in communication with the locating and communication devices. The controller may be configured to determine a side of the roadway at which a first target location is currently being serviced by the service vehicle, and to determine based on the signal from the locating device a proximity of the service vehicle to a second target location at which the waste services are to be performed. The second target location may be on the same side of the roadway as the first target location. The controller may also be configured to automatically provide via the communicating device an estimated time of arrival to a customer corresponding to the second target location, based on the proximity.

A method that may be performed by a UE includes obtaining map information regarding, at least, one or more reflectors in an environment including at least the UE and another node, detecting at least one positioning reference signal (PRS) transmission that travels one or more non line-of-sight (NLOS) transmission paths in the environment, and participating in a positioning procedure that estimates a position of the UE based, at least in part, on the at least one PRS transmission that travels the one or more NLOS transmission paths and the map information.