A numerical operation system for a plurality of individuals includes a contactless communication tag each included in a plurality of individuals, a reader allowed to read the contactless communication tag, and a control unit to which a result read by the reader is input, wherein the control unit is configured such as to acquire, from the result read by the reader, at least numerical values each corresponding to the plurality of individuals and operator symbols for operating the numerical values to calculate a total value based on the numerical values and the operator symbols.

Computer-implemented methods, computer program products, and systems are provided for performing Near Field Communication (NFC) communication with a first NFC device that includes a NFC writable component and an operating system that restricts writing to the NFC writable component and allows reading NDEF messages from a source other than the NFC writable component. A method includes receiving, by a remote server, a serial number of the NFC writable component. The method further includes generating, by the remote server, a unique ID based on the serial number. The method also includes storing, by the remote server, the unique ID with a name of the NFC writable component. The method additionally includes preparing and sending, by the remote server, a Near Field Communication Data Exchange Format (NDEF) message to the NFC device that includes the unique ID together with information to be shared with a user of the NFC device.

An electronic price indicating system according to the embodiment includes: at least one electronic price indicator for displaying product information; and a power supply apparatus connected to the at least one electronic price indicator to supply a driving signal which is driving power of the at least one electronic price indicator. The power supply apparatus includes: a power supply unit connected to the at least one electronic price indicator and supplying driving power to the electronic price indicator; an antenna for receiving data transmitted from a server; and a communication unit for confirming a first electronic price indicator to which data received via the antenna is to be applied and supplying power to the confirmed first electronic price indicator, wherein the communication unit controls an operation of the power supply unit, modulates the power supply signal according to the received data, and supplies the modulated power supply signal to the first electronic price indicator.

An agricultural work machine, an agricultural work machine control system, and method for an agricultural work machine having RFID tags to determine a fault condition of machine components, devices, parts or systems. The RFID tags are located on, at, or near machine components or systems to sense a temperature of those components or systems. A receiver/transmitter interrogates the RFID tags and receives the sensed temperatures, and component identifiers. A controller receives the temperatures from the receiver/transmitter and compares the received temperatures to a threshold to determine whether a fault condition exists. If so, the controller transmits an alert signal to a user interface to indicate that a fault condition exists with an identified component, part, device, or system.

A power tool system includes a power tool and a cloud sever configured to receive an upgrading file for upgrading the power tool. The power tool is adapted for wireless communication with the cloud server and includes a motor, a driving module for driving the motor, a control module for outputting a control signal to the driving module, and an IoT module for establishing a wireless communication link between the power tool and the cloud server. The IoT module, the driving module and control module share a bus, and the upgrading file is simultaneously distributed to the control module and/or the driving module through the bus.

The game table reading system comprises reading antennas for each of a plurality of reading areas of a game table, read-restriction antennas for each of the plurality of the reading areas, the read-restriction antennas restricting the RFID tag embedded in a game token placed in the corresponding reading area from being read by the reading antenna corresponding to the other adjacent reading areas, a reading control device that controls the reading antennas, and a read-restriction control device that controls the read-restriction antennas. The read-restriction control device causes the read-restriction antennas corresponding to the reading areas adjacent to the reading areas corresponding to the reading antenna that the reading control device causes to read, in synchronization with the reading control device.

A printer configured to print on a printing medium having an RFID, comprising a communication unit configured to communicate with the RFID, and a search unit configured to move the communication unit to a position with respect to the RFID to search for a position communicable with the RFID, wherein the search unit determines communication success/failure between the RFID and the communication unit at a plurality of positions with respect to the RFID, and on the basis of a region including a plurality of positions determined as the communication being successful, identifying a communication position between the RFID and the communication unit.

In some embodiments, an RFID system for product identification may include a compartment having a first wall and a second wall that extend toward each other and that together define at least part of a cavity and a channel. The cavity may extend laterally along a first direction and may be configured to contain a suspended package and having a first width may extend along a second direction. The channel may extend laterally along the first direction and having a second width may extend along a second direction, the channel being in fluid communication with the cavity, the channel may be configured to limit movement along the second direction of a support that extends downward through the channel and into the cavity to support the suspended package, the second width of the channel being narrower than the first width of the cavity.

A product management system includes a product management apparatus for managing a product, a user communication apparatus carried by a user, and a tool communication apparatus provided on a holding tool for holding the product. The tool communication apparatus transmits first notification information including a tool identifier indicating the holding tool when detecting that the holding tool is taken out from a display zone in which the holding tool is disposed. The user communication apparatus receives the first notification information from the tool communication apparatus, and transmits a user identifier indicating the user or the user communication apparatus and the first notification information to the product management apparatus.

A management method of test fixtures applied to a test procedure comprises: binding electronic tags to the test fixtures respectively, obtaining pieces of data respectively stored in the electronic tags by a reader device, obtaining the pieces of data from the reader device and obtaining original usage counts respectively associated with the pieces of data from a storage device by a processing device, determining whether each of the original usage counts does not exceed a threshold by the processing device, performing the test procedure on an object under test using the test fixtures when each of the original usage counts does not exceed the threshold, and after performing the test procedure, generating updated usage counts according to the original usage counts and replacing the original usage counts in the storage device with the updated usage counts respectively by the processing device.