Systems, methods, and computer-executable instructions for reducing network traffic from a beacon reader including detecting a plurality of beacon information from the beacon during a read delay period of time. A distance between the beacon reader and the beacon for each of the two of more beacon information is determined. A combined distance based on the determined distances between the beacon reader and the beacon for each of the plurality of beacon information is determined. A distance moved from the combined distance and the previous distance of the beacon is determined. The distance moved is greater than a predetermined distance threshold. A beacon identifier is transmitted to a remote server based on the distance moved being greater than the predetermined distance threshold.

Some embodiments describe a system for rope-based localization. The system includes a rope; a first tag, and a second tag coupled to the rope at an interval from the first tag. A reader includes a reader tag sensor to detect the first tag and record a rope ID or a tag ID. The rope ID includes identifying information for the rope. The tag ID includes identifying information for first tag. An orientation measurement unit records orientation data for the reader. The reader is aligned with the rope. The reader orientation is taken as the rope orientation. The orientation data includes azimuth measurement and attitude measurement of the reader. A navigation device includes a navigation tag sensor to detect the first tag and a navigation processor to receive positioning data of the first tag.

Access control electronics for wireless locks comprise one or more battery operated radios that receive access control codes. The wireless accessed locks locate the electronic components, circuits, sensors and antennas and many of the lock components away from the container being secured and closer to the operator/user. The disclosed access control electronics combine a proximity detection circuit comprising sensor pads and a capacitive sensing circuit and one or more short-range radio frequency antennas for reading RFID devices. The proximity sensor pads are in close proximity with the antennas, without the antennas interfering with the proximity sensing process, and the sensor pads to not attenuate the signals between the RFID devices and the antennas after the RFID devices are detected.

A smart card management device and a smart card management method are provided, the smart card management device includes: a main controller, a serial peripheral interface control module, and a plurality of card slot control modules; the master controller is configured to obtain a smart card access request and send the smart card access request to the serial peripheral interface control module; the serial peripheral interface control module is configured to send the smart card access request to a corresponding card slot control module according to the card slot identifier; the card slot control module is configured to access a corresponding smart card according to the smart card identifier, obtain an execution result of the smart card, and store the execution result to facilitate the master controller to read the execution result by polling. This device can process a plurality of smart cards in parallel.

Described is a method for guiding a user for positioning a first RFID-enabled device relative to a second RFID-enabled device for allowing a robust RFID communication between the two RFID-enabled devices. The method includes placing the first RFID-enabled device to a first position relative to the second RFID-enabled device; receiving, by the first RFID-enabled device, when being located at the first position, a first RFID signal transmitted by the second RFID-enabled device; measuring, by the first RFID-enabled device, a first signal strength of the first RFID signal; placing the first RFID-enabled device to a second position relative to the second RFID-enabled device; receiving, by the first RFID-enabled device, when being located at the second position, a second RFID signal transmitted by the second RFID-enabled device; measuring, by the first RFID-enabled device, a second signal strength of the first RFID signal; determining, based on the first signal strength and on the second signal strength, a movement indication for a movement of the first RFID-enabled device towards a target position, at which there is expected a target RF coupling strength between the two RFID-enabled devices, which is stronger than a first RF coupling strength being associated with the first position and a second RF coupling strength being associated with the second position; and (h) providing the determined movement indication to the user of the first RFID-enabled device. In other embodiments, an RFID communication system and device are provided.

An inventory system configured for detecting and counting potentially retained surgical items within a body of a patient includes a tag configured to transmit a return signal including an electrical characteristic when energized, a signal generator configured to generate an energizing signal for the tag, an antenna operably coupled to the signal generator and configured to receive at least the return signal transmitted by the tag, a processor, and a memory. The memory includes instructions stored thereon, which, when executed by the processor, cause the inventory system to energize the tag by the energizing signal, receive the return signal from the tag by the antenna, and determine a presence of the beacon tag based on the electrical characteristic.

A code display medium includes a code image display portion which arranges a plurality of code images side by side in a circumferential direction around an axis of screw fastening and which displays the plurality of code images so as to be optically readable, each of the plurality of code images including identification information for identifying at least one of a fastening material for the screw fastening and/or an object to be fastened by the screw fastening and a fixing portion which fixes the code image display portion to a position that is on the object to be fastened and that can be simultaneously captured with the fastening material in a state where the screw fastening is performed.

The embodiments of the present disclosure provide a polishing head management system and method. The polishing head management system includes: a storage device, a pick-and-place device and a data acquisition device, where the storage device is used to store polishing heads; the pick-and-place device is used to pick a polishing head or place a polishing head into the storage device; the data acquisition device is connected with the storage device and the pick-and-place device, and is used to record at least one management cycle of the polishing head.

A wireless network, mobile systems and methods for controlling access to lockers, strollers, wheel chairs and electronic convenience vehicles and other networked devices provided with machine-readable codes that are scanned by mobile phones and computing devices.

A tag communication device includes a communication device and one or more control processors configured to cause the communication device to transmit a first command for notifying selection of a wireless tag including an identification code including a mask pattern that is a part of the common portion of identification codes. The one or more control processors are configured to cause the communication device to transmit a second command for requesting a response to the selected wireless tag and to cause the communication device to transmit a third command for requesting rewriting to the wireless tag that transmits data in response to receiving the data transmitted from one wireless tag. The one or more control processors are configured to cause a repeat of transmission of the second command if a third command is transmitted until the third commands are transmitted to each of a predetermined number of the wireless tags.