There is described a method of determining a phase value for an NFC card emulating device that enables said NFC card emulating device to communicate in phase with an NFC reader device while utilizing active load modulation, wherein the NFC card emulating device comprises a card antenna and the NFC reader device comprises a reader antenna, the method comprising receiving a reader signal from the NFC reader device at the NFC card emulating device through coupling of the card antenna and the reader antenna, the reader signal comprising a subcarrier modulation; estimating a resonance frequency of a system corresponding to the coupled card antenna and reader antenna based on the received communication signal; and determining the phase value based on the estimated resonance frequency and a set of parameters that represents a predetermined reference system. Furthermore, an NFC card emulating device, an NFC system, and a computer program are described.

A system and method of detecting a pick-up of an item are provided. The method includes receiving at least one data packet from at least one IoT tag, extracting a frequency word from the at least one received data packet, wherein the frequency word is a measure of the at least one IoT, analyzing the frequency word to determine a pick-up event to be associated with a pick-up of the item attached to the at least one IoT tag, and upon detecting the pick-up event, sending a notification including an identification of the at least one IoT tag, wherein the notification incudes collateral product information associated with the picked-up item attached to the at least one IoT tag, and displaying the collateral product information of the picked-up item on a display on a physical location of the picked-up item.

A Near Field Communication (NFC) payment system is provided for interacting with a NFC customer device enabled with a NFC scanning capability. The NFC payment system includes a NFC-scannable user-worn payment ring configured to perform a terminal-less payment transaction between itself and the NFC customer device.

A wearable payment device, such as a finger ring worn by a user, communicates payment data via an antenna to a payment reader that uses the payment data in order to request a payment transaction. The wearable payment device can tune the antenna to enhance performance of the antenna. The wearable payment device can measure a characteristic of the antenna and perform an assessment of the performance of the antenna based on the measured characteristic. The antenna can be tuned, such as by changing the impedance of the antenna, based on the assessed performance of the antenna.

Consistent with disclosed embodiments, systems, methods, and computer readable media for electronic security systems for retail establishments may be provided. Embodiments may include an electronic article surveillance (EAS) gate and at least one receiver configured to receive transmissions from wireless tags associated with products offered by a retail establishment. Embodiments may also include at least one processor configured to receive, from a device operated by a prospective purchaser, a tag ID associated with a specific product for prospective purchase; perform a lookup of the tag ID in a data structure to identify the specific product; initiate an electronic purchase transaction to debit an account associated with the prospective purchaser for purchase of the specific product; and disable an ability to initiate an alarm when the at least one receiver receives a transmission from a tag associated with the specific product in proximity to the EAS gate.

An absorbent structure, including a sensor system, can sense and measure the level of wetness contained within the absorbent structure as well as sense and measure environmental conditions. The sensor system may include passive RFID sensors or tags, RFID readers, antenna, a tuning module, a processing module, a memory module and a wireless communication module. The absorbent structure may further include two or more sensors, with a first sensor placed in a first area most likely to first be exposed to liquid and a second sensor spaced apart from the first sensor in an area likely to be exposed to liquid only after the absorbent structure has become more saturated.

A distributed automation control system includes a network for connecting members of the system to a central server for communication between the members and the central server. The members can include a device controlled by a microcontroller in communication with the network, a mobile object digitized to communicate with the central server via the network, and a facility component in communication with the central server. A member can be assigned to one or more groups of members for group learning and for generating a group heartbeat. Each member defines a safety volume which is monitored by the central server. When the safety volume of one member overlaps the safety volume of another member, the central server initiates a responsive action which can include ceasing the operation of at least one of the members.

A field device includes a microcontroller-based electronic circuit. The microcontroller-based electronic circuit includes a memory module. The memory module is connected to the microcontroller and configured to store data during operation of the field device. The electronic circuit further includes a wireless interface via which the data can be read out from the memory module.

An electrical unit has a microcontroller-based electronic circuit. The electrical unit includes a memory module connected to a microcontroller of the microcontroller-based electronic circuit and configured to store data during operation of the electrical unit. The electrical unit further includes a wireless interface via which the data can be read out from the memory module.

An ultra-high frequency (UHF) wireless sensor includes an agent activated non-metal antenna formed of a conductive stimuli-responsive hydrogel material. A radio frequency identification (RFID) tag in electronic communication with the non-metal antenna includes a wireless data communication integrated circuit (IC). The non-metal antenna is configured to be inactive prior to an interaction with an activating agent and active upon the interaction with the activating agent.