摘要:
Systems (100) and methods (400) for Radio Frequency Identification (“RFID”) security tags. The methods comprise: concurrently reading the RFID security tags and locator tags to obtain unique identifiers thereof and Received Signal Strength Indicator (“RSSI”) measurements therefore, where the RFID security tags are respectively coupled to inventory items located within a facility and the locator tags are placed at locations within the facility so as to respectively define a plurality of Zones Of Interest (“ZOIs”) in which inventory items may reside; and determining which ZOI of the plurality of ZOIs each said RFID security tag resides within based at least on the RSSI measurements, a number of times each locator tag was read, read times specifying when the locator tags were read, differences in read times for the locator tags, and known locations of the locator tags.
摘要:
Parts in a manufacturing or service facility are electronically tracked using wireless beacons and location tags, strategically positioned receiver devices in the facility, and a monitoring server. The wireless beacons and location tags are individually coupled to parts in the facility to be tracked and store beacon-, tag-, and part-specific identifiers that can be wirelessly communicated to the monitoring server through receiver devices or mobile devices of workers in the facility. In particular, the location tags transmit various identifiers when the mobile devices or wireless beacons are brought into close proximity to the location tags. The mobile devices allow workers to request on-demand and up-to-date work orders for the parts with location tags, and the wireless beacons communicate the location tags' identifiers to the monitoring server. The monitoring server uses the identifiers to track the locations of the parts and manage electronic work orders for the parts.
摘要:
Disclosed are examples of systems, apparatus, methods and computer program products for locating unmanned aerial vehicles (UAVs). A region of airspace may be scanned with two scanning apparatuses. Each scanning apparatus may include one or more directional Radio Frequency (RF) antennae. The two scanning apparatuses may have different locations. Radio frequency signals emitted by a UAV can be received at each of the two scanning apparatuses. The received radio frequency signals can be processed to determine a first location of the UAV.
摘要:
Embodiments of the present invention relate to a method and an apparatus for establishing an indoor location feature library. A sever selects, by using identification information of first user equipments (UEs) that is included in received first measurement data, multiple pieces of the first measurement data that have identification information of a same first UE; when the first UE is located indoors, obtaining location information of multiple of first access nodes according to feature attribute information of the multiple of the first access nodes; determining, according to the location information of the multiple of the first access nodes and the feature attribute information of the multiple of the first access nodes, indoor location information of the first UE; and establishing an indoor location feature library by using cell identification information and signal power values of multiple cells and indoor location information of the first UE.
摘要:
A method and system are disclosed for tracking mobile devices. The system comprises a computer cloud having one or more computer servers, and a plurality of mobile devices. Each mobile device broadcasts a Bluetooth Low Energy (BLE) beacon, and also scans BLE beacons broadcast from nearby devices. When one or more mobile devices detect the beacon of another mobile device, they report to the cloud the location ranges of the mobile device that they detected. The cloud then uses the reported location ranges of the mobile device to determine the location of the target mobile device, and reports the determined location to the user of the mobile device.
摘要:
A wireless communicating apparatus according to the present disclosure includes: a wireless communicating device configured to perform directional wireless communication with an external device; a display for displaying information that relates to the external device; and a controller configured to control a display position of the information that relates to the external device, wherein the controller moves the display position toward an edge from a current display position, when a quality of the communication with the external device deteriorates.
摘要:
Methods for tracking a signal origin by a spectrum analysis and management device are disclosed. Signal characteristics of other known emitters are used for obtaining a position of an emitter of a signal of interest. In one embodiment, frequency difference of arrival technique is implemented. In another embodiment, time difference of arrival technique is implemented.
摘要:
Methods for optimizing telemetry in an implantable medical device system are disclosed, with the goal of equating and maximizing the communication distances between devices in the system, such as the external controller and the Implantable Pulse Generator (IPG). The method involves computerized simulation of maximum communication distances in both directions between the two devices while varying at least two parameters of the telemetry circuitry, such as the number of turns in the telemetry coils in the two devices. This results in a simulation output comprising a matrix in which each element comprises the bidirectional distance values. An element is determined for which the distances are equal (or nearly equal) and maximized (or nearly maximized), and the optimal values for the parameters are then chosen on that basis, with the result that the communication distance in one direction equals the communication distance in the other direction, and is maximized.
摘要:
A method for tracking the movement and trajectory of objects associated with wireless devices, located in a predefined area, wherein transceiver nodes communicating with the monitored wireless communication devices are formed, the objects associated with wireless communication device entering or located in the range of the transceiver nodes are detected by said transceiver nodes and relevant collected data are processed by measuring the strength of the signal emitted by the object during communication by at least two access points, converting the measured signal strength data into a vector set, selecting and filtering out the objects that are communicating but make no movement by evaluating the vector set, and analysing the movement of the communicating objects changing their place by applying a pre-defined mathematical model. Access points operating according to a small-range “peer-to-peer” (P2P) type wireless communication standard are used as transceiver nodes.
摘要:
In a cellular communications network system comprising a plurality of cells including a first cell and second cells different from and present in the neighborhood of the first cell, measurement reports are repeatedly received from user equipments, each including a first signal strength value corresponding to a signal strength measured from the first cell over a short time period and n second signal strength values corresponding to signal strengths measured over the short time period from n second cells, which correspond to the n strongest signal strengths measured from the second cells, n being an integer greater than one. A value of a counter is incremented which corresponds to a potential cooperation area formed by the first cell corresponding to the first signal strength value and the n second cells corresponding to the n second signal strength values.