A method for controlling access to a restricted area, comprising: determining, by an electronic circuit, whether a person desires to enter the restricted area; checking whether the person is authorized to enter the restricted area using a first unique identifier associated with a Wearable Access Sensor, WAS, being worn by the person; causing a person's Portable Communication Device, PCD, to transmit a second unique identifier and location information useful in determining the PCD's location within a surrounding environment, when a determination is made that the person is authorized to enter the restricted area; using the second unique identifier and location information to confirm that the person is currently located at an access point of the restricted area; and causing actuation of a mechanical actuator to enable the person's entrance into the restricted area when it is determined that the person desires to enter the restricted area, the person is authorized to enter the restricted area, and the person is currently located at the access point of the restricted area; wherein a determination as to whether or not the person desires to enter the restricted area is made based on Received Signal Strength Indicator, RSSI, measurement data specifying a power present in a signal received from the Wearable Access Sensor, WAS, worn by the person and wherein a determination as to whether or not the person desires to enter the restricted area is made based on rate of change data specifying a rate of change of a charging voltage of an energy storage device used in an electromagnetic field energy harvesting circuit disposed within the WAS. determining, by an electronic circuit, whether a person desires to enter the restricted area; checking whether the person is authorized to enter the restricted area using a first unique identifier associated with a Wearable Access Sensor, WAS, being worn by the person; causing a person's Portable Communication Device, PCD, to transmit a second unique identifier and location information useful in determining the PCD's location within a surrounding environment, when a determination is made that the person is authorized to enter the restricted area; using the second unique identifier and location information to confirm that the person is currently located at an access point of the restricted area; and causing actuation of a mechanical actuator to enable the person's entrance into the restricted area when it is determined that the person desires to enter the restricted area, the person is authorized to enter the restricted area, and the person is currently located at the access point of the restricted area; wherein a determination as to whether or not the person desires to enter the restricted area is made based on Received Signal Strength Indicator, RSSI, measurement data specifying a power present in a signal received from the Wearable Access Sensor, WAS, worn by the person and wherein a determination as to whether or not the person desires to enter the restricted area is made based on rate of change data specifying a rate of change of a charging voltage of an energy storage device used in an electromagnetic field energy harvesting circuit disposed within the WAS.