A control device includes a control section configured to obtain one or more distance measurement values, and estimate a relative position of a position changeable type communication device with respect to a target space based on the one or more distance measurement values, the one or more distance measurement values being obtained when one or more position fixed type communication devices and the position changeable type communication device perform wireless communication, and indicating a distance between each of the one or more position fixed type communication devices and the position changeable type communication device.

Provided are positioning methods and apparatuses of a relative position between UEs, communication devices and storage media, a method includes: receiving relative position positioning indication sent by a core network, where the relative position positioning indication is for determining a relative position between a first UE and a second UE; and sending resource configuration based on the relative position positioning indication to the first UE and the second UE, where the resource configuration is for configuring transmission resources for one or more of the first UE and the second UE to transmit or receive one or more Uplink (UL) Sounding Reference Signals (SRSs) for sounding the relative position between the first UE and the second UE.

An electronic device configured to establish a first Bluetooth low energy (BLE) connection with an external electronic device, measure a distance between the external electronic device and the electronic device based on a first distance measurement scheme, identify whether the distance is within a set range between a first distance and a second distance. Based on a determination that the distance is within the set range, measure a distance between the external electronic device and the electronic device based on a second distance measurement scheme and establish a second BLE connection with the external electronic device. Based on a determination that the distance measured based on the second distance measurement scheme is shorter than the second distance, measure a distance between the electronic device and the external electronic device based on an ultra-wide band (UWB) technology.

An access control device of a vehicle is configured to detect the spatial position of the access element of the vehicle safety unit relative to the vehicle via electromagnetically detecting the distances and angles between several low-frequency transmitting antennas of the vehicle safety unit and the low-frequency receiver of the access element. The access control device is also configured to detect the location position of an external induction charging unit relative to the vehicle via electromagnetically measuring the distance and angle between at least two transmitting antennas of several low-frequency transmitting antennas and at least one receiving antenna of the induction charging unit.

The invention relates to a method, system and computer program product for determining a position of a person with respect to a blind spot of a vehicle. In a first aspect, the invention relates to a method for determining a position of a person with respect to a blind spot of a vehicle. In a second and third aspect, the invention relates to a system and a computer program product, respectively, for determining a position of a person with respect to a blind spot of a vehicle. Embodiments of the present invention are discussed throughout the claims, description and figures.

The invention relates to a method, system and computer program product for determining a position of a person with respect to a blind spot of a vehicle. In a first aspect, the invention relates to a method for determining a position of a person with respect to a blind spot of a vehicle. In a second and third aspect, the invention relates to a system and a computer program product, respectively, for determining a position of a person with respect to a blind spot of a vehicle. Embodiments of the present invention are discussed throughout the claims, description and figures.

The present invention describes an electronic personal protective device (2) comprising a rechargeable battery (3), a transceiver (4) configured to send and receive wireless signals (FR1, FR2) with predetermined power and sensitivity as a function of the action radius (r) which is to be monitored, a memory unit (5) containing a unique recognition code (ID1, ID2), an actuator (6) configured to warn the person wearing said electronic device (2), a processing unit (20) configured to: generate and send to said transceiver (4) a frame (FR1, FR2) at programmable time intervals (Tadv), receive and process frames (FR1, FR2) sent from other electronic personal protective devices (2) placed within said action radius (r), generate an alarm signal (S_AL), if a second electronic device (2) is located within said action radius (r), send said alarm signal (S_AL) to said actuator (6). The invention further describes a corresponding method and computer program.

A wireless communication device with localization capabilities comprises a first receive chain for receiving a first signal from a first static communication node, and at least a second receive chain for receiving at least a second signal from at least a second static communication node. The first and at least one second receive chains are configured to simultaneously receive the first and at least one second signals. The wireless communication device is configured to determine a first distance between the wireless communication device and the first static communication node on the basis of the first signal, determine at least a second distance between the wireless communication device and the at least one second static communication node on the basis of the at least one second signal, and determine a location of the wireless communication device on the basis of the first and least one second distances.

A method for locating a communication device borne by a user in proximity to a vehicle in order to trigger at least one function of said vehicle, the method especially including, in a locating phase, steps of detection of a set of obstacles, called “current” obstacles, of identification of the communication device in the set of current obstacles and of location of the identified communication device among the obstacles of the set of obstacles.

A method for detecting radial deformation in a winding of a transformer may include synthetic aperture radar (SAR) imaging of the winding using ultra high frequency (UHF) electromagnetic signals in a first instance of the winding to obtain a first image of the winding; SAR imaging of the winding using UHF electromagnetic signals in a second instance of the winding to obtain a second image of the winding; and comparing the first image of the winding and the second image of the winding to detect a radial deformation in the winding. The UHF electromagnetic signals may be transmitted as a plurality of successive sinusoidal signals, where frequencies of the successive sinusoidal signals gradually change from a first frequency to a second frequency.