A method for seamless access control according to one embodiment includes determining whether a user is authorized to access a passageway controlled by an access control device based on credential data received from a mobile device of the user, determining, by a RADAR system, a location of the user relative to the passageway, determining whether the user intends to access the passageway based on the determined location of the user relative to the passageway, and controlling, by the access control device, a lock mechanism to allow the user access to the passageway in response to determining that the user is authorized to access the passageway and the user intends to access the passageway.

A first device includes: a first reference signal source; a first transmitting/receiving unit which transmits two or more first carrier signals and receives two or more second carrier signals using an output of the first reference signal source; and a calculating unit. A second device includes: a second reference signal source configured to be operated independently from the first reference signal source; and a second transmitting/receiving unit configured to transmit two or more second carrier signals and receive two or more first carrier signals using an output of the second reference signal source. A frequency group of two or more first carrier signals and a frequency group of two or more second carrier signals differ from each other. The calculating unit calculates a distance between the first device and the second device based on a phase detection result obtained by receiving the first and second carrier signals.

A system for storing a plurality of tangible assets, the system having an RF component associable with a tangible asset, wherein the RF component has a unique identifier and is configured to receive a carrier signal and emit a modulated carrier signal, wherein modulation of the carrier signal is based on the unique identifier. The system also has an RF detection system having a plurality of RF coils, wherein each coil is arranged to emit a carrier signal and receive the modulated carrier signal emitted by the RF component, a processor in communication with each of the plurality of RF coils, wherein the processor is configured to poll the plurality of RF coils by selectively allowing current to flow through one or more of the plurality of RF coils at a time and identify the RF component based on modulation of the carrier signal.

Techniques are described for keyless entry to a structure (e.g., hotel room) utilizing a set-back box. Registrants (e.g., hotel guest) may scan a barcode from their mobile device to check-in to the structure. Upon scanning the barcode or by other means, a mobile device identifier (e.g., a Bluetooth low-energy address (BLE)) is registered and associated with the checked-in structure. Receiving the registered mobile device identifier, the backend server pushes such to the set-back box associated with (e.g., resides in) the checked-in structure. The set-back box is enabled (e.g., BLE enabled) to actively scan addresses of nearby mobile devices. When the registered mobile device identifier is detected within a predetermined signal strength range (e.g., by using received signal strength indicator (RSSI) levels), the set-back box transmits a command to a smart lock (e.g., via BLE or Wifi or other radio) or to a lock controlling backend processor, to open the lock.

In accordance with a first aspect of the present disclosure, a system is provided for facilitating localizing an external device, the system comprising: at least one UWB communication node; a controller operatively coupled to said UWB communication node, wherein the controller is configured to switch the UWB communication node between a ranging mode of operation and a radar mode of operation in dependence on an estimated distance between the UWB communication node and the external device.

A security system includes a portable terminal, a communication device communicating with the portable terminal, and a determination unit determining validity of the portable terminal. Phase data acquired from distance measuring radio wave is used to determine validity of communication between the portable terminal and the communication device. The received phase data of the distance measuring radio wave varies according to the distance from a transmission source. When the communication device and the portable terminal are fixed, and the communication device and the portable terminal have transmitted and received distance measuring radio waves having the same specific frequency, vehicle acquisition phase data and terminal acquisition phase data are the same. The determination unit determines, by using this two types of phase data, the validity of communication between the communication device and the portable terminal is determined.

A locking and release system of a lock fitted on a vehicle comprising: a mechanical lock (10, 70) which is fixed on a door of a vehicle; an electronic circuit (11) associated with said lock (10, 70); said electronic circuit (11) comprises a Bluetooth communication device (13); an Internet communication device (14); a GPS localization device (15); said system further comprises: a cloud (30) containing the data for the management of said system; a management centre (35) of said system; said management centre (35) is adapted to communicate with said cloud (30); a smartphone (21); said smartphone (21) comprises a Bluetooth communication device (22); an HTTPS communication device (23); and a GPS localization device (24); said electronic circuit (11) and said smartphone (21) are adapted to communicate with said cloud (30); said smartphone (21) is adapted to communicate with said electronic circuit (11); said lock (10, 70) opens if the following conditions are met: the GPS position of the lock (10, 70) coincides with the delivery position; the GPS position of the smartphone (21) coincides with the delivery position; said smartphone (21) is recognized by the system; said lock comprises coupling means (56, 74), located on a first door adapted to close against closing means (59, 71) located on a second door and locking means (60, 78) adapted to lock said coupling means (56, 74) in the closed position.

It is provided a location determiner comprising: a first antenna; a radio signal modification device, wherein the radio signal modification device is configured to improve an ability to determine whether the portable key device is located on a back side or on a front side of the location determiner, based on obtaining a channel impulse response, CIR, of an impulse signal transmitted from the portable key device, wherein the location determiner is installable such that the back side is in a space being restricted by selectively unlockable a physical barrier and the front side is opposite the back side.

It is provided a method for determining when a portable key device is located on a front side or on a back side in relation to a barrier secured by an electronic lock. The method is performed in a location determiner and comprises the steps of: obtaining a channel impulse response, CIR, based on an impulse signal transmitted from the portable key device, the CIR being based on a plurality of samples of the impulse signal as received by an antenna being fixedly mounted in relation to the electronic lock; and determining, based on the CIR, whether the portable key device is located on the front side or on the back side.

A vehicle including a locking member configured to lock and unlock a door of the vehicle, a manipulation member provided on a handle of the door, a camera configured to obtain an image, a communicator configured to communicate with an external device, and a controller including a facial recognition processor configured to recognize a face based on image information obtained by the camera, and an authentication processor configured to perform a user authentication based on the face information , the controller being configured to obtain distance information of the external device based on a signal received by the communicator, transmit a booting instruction to the facial recognition processor based on the distance information, transmit a facial recognition instruction to the facial recognition processor based on the distance information after the booting is completed, and control operation of the locking member based on user authentication information and a manipulation signal.