In one aspect, a first device may include at least one processor, an ultra-wideband (UWB) transceiver accessible to the at least one processor, and storage accessible to the at least one processor. The storage may include instructions executable by the at least one processor to track a location of a second device different from the first device using one or more UWB signals received from the second device via the UWB transceiver. The instructions may also be executable to unlock a hardware lock controlled by the first device responsive to a determination, based on the tracking of the location of the second device, that the second device is within a predetermined area of the first device.

A method for calibrating a radio-based keyless access system of a transportation vehicle, an access system, and a corresponding transportation vehicle. Based on a measured field strength of an LF field, it is determined whether the signal transmitter is located at most at a specified distance from the transportation vehicle. A second transmission device emits a higher-frequency calibration signal in response to which the signal transmitter transmits a response signal back to the transportation vehicle. A reference distance from the signal transmitter to the transportation vehicle is automatically determined from the propagation time of the calibration signal and the response signal. The measured LF field strength-based determination of whether the signal transmitter is located at most at a specified distance from the transportation vehicle is then calibrated automatically based on the determined reference distance.

A method for localizing a user device using a Time-of-Flight (ToF) antenna array disposed on a vehicle, the method includes determining via a ToF localization controller, that a user device is positioned at a front region of a vehicle, calculating a distance to the user device from a combination of two ToF antennae of the ToF antenna array, and performing a 2-dimensional (2D) trilateration calculation. The method further includes evaluating a confidence metric value, determining a position of the user device based on the confidence metric value, and generating an unlock signal that unlocks a vehicle door.

A method for localizing a user device using a Time of Flight (ToF) antenna array disposed on a vehicle, the method includes determining, via a ToF localization controller, that the user device is less than a threshold distance from the vehicle, determining an angle of arrival via the ToF localization controller and the ToF antenna array, and generating an unlock signal that unlocks a vehicle door responsive to determining that the user device is less than the threshold distance from the vehicle door.

An access control system may comprise a credential including credential data, and at least one reader. The at least one reader is configured to receive, over a link, the credential data. The at least one reader is configured to verify that the credential is valid based on the credential data, and mark the credential as valid and track a location of the credential relative to the at least one reader. The at least one reader is configured to make or delay an access control decision for the credential based on the location of the credential.

It is presented a method for controlling a lock configured to control access to a restricted physical space, the method being performed in a lock controller. There is a respective active space associated with each lock. The method comprises the steps of: receiving an activation signal from an activation device, the activation signal being based on the portable key device being located within the active space associated with the lock; obtaining an indication that the portable key device is granted access to the lock; determining a second indication of position of the portable key device using a second positioning procedure, wherein the second positioning procedure is more accurate than the first positioning procedure; determining intent to open based on the second indication of position; and transmitting an unlock signal to the lock associated with the lock controller.

Systems and techniques for a physical access control systems with localization-based intent detection are described herein. In an example, an access control system may regulate access to an asset. The access control system is adapted to receive a credential from a key device associated with a user using a first wireless connection. The access control system may be further adapted to verify the credential with a preliminary authentication for the asset. The access control system may be further adapted to establish a second wireless connection with the key device in response to verifying the credential with the preliminary authentication. The access control system may be adapted to determine an intent of the user to access the asset. The access control system may identify the credential includes a pattern in the preliminary authentication. The access control system may be further adapted to provide a command to grant access to the asset.

In accordance with a first aspect of the present disclosure, a communication node is provided, comprising: an ultra-wideband (UWB) communication unit configured to enable UWB communication with a plurality of external communication nodes; a processing unit configured to perform ranging sessions between the communication node and said external communication nodes, wherein said ranging sessions comprise one or more distance measurements based on messages exchanged through the UWB communication unit between the communication node and said external communication nodes; and a prioritization unit configured to prioritize said ranging sessions in dependence on at least one previously measured distance between the communication node and the respective external communication nodes. In accordance with a second aspect of the present disclosure, a method of operating a communication node is provided. In accordance with a third aspect of the present disclosure, a computer program is provided, comprising executable instructions for carrying out said method.

According to one embodiment, a method of conserving energy while seeking to wirelessly actuate an access control using a mobile device is provided. The method including: searching for a wireless signal at a first rate; detecting a wireless signal; generating a zone of interest; detecting positional data of a mobile device; and searching for a wireless signal at a second rate greater than the first rate when positional data of the mobile device indicates that the mobile device is within the zone of interest.

A smart thermostat hub and a management platform for controlling and securing smart devices in a multi-family residential property are disclosed. Smart thermostat hubs may bi-directionally communicate with the management platform using a LoRaWAN communication link and communicate with smart devices present within an apartment of the multi-family residential property via a non-LoRaWAN communication link. Smart thermostat hub may provide a gateway or bridge between the management platform and an offline door lock, thereby enabling access credentials for an offline door lock to be disabled from the management platform, and may serve to facilitate remote configuration of other smart devices, such as thermostats and smart light fixtures, for example.