A data logging device includes an activation circuit, an environmental sensor, a processing module, and an environmental indicator. The activation circuit is operably coupled to place the data logging device in a ready mode based on an activation signal. The environmental sensor is operable to sense an environmental condition associated with the data logging device in response to a log command to produce sensed data. The processing module is operably coupled to generate the log command; receive the sensed data; determine whether the sensed data triggers an environmental violation; and, when the sensed data triggers the environmental violation, generate an environmental violation signal. The environmental indicator is operably coupled to provide a visual indication of the environmental violation based the environmental violation signal.

A method includes establishing, by a data logging device, a sleep mode. The method further includes receiving, by a processing module of the data logging device, a second activation command that causes the data logging device to transition to a standby mode. The method further includes receiving, by the processing module, a third activation command that causes the data logging device to transition to a ready mode. The method further includes receiving, by the processing module, a fourth activation command that causes the data logging device to transition to a logging mode. In the logging mode, the method further includes obtaining, by the processing module, a log command. In response to the log command, the method further includes obtaining, by the processing module, a measure of an environmental condition. The method further includes storing the measure of the environmental condition in memory of the data logging device.

A method for employing cycle counting is presented. The method includes interrogating, by an RFID reader, RFID tags by using a plurality of antenna ports, determining, by an activation sequencer, an activation sequence of the plurality of antenna ports that have been enabled, collecting RFID tag responses from each of the RFID tags, and matching one or more of the RFID tag responses to a particular antenna port of the plurality of antenna ports in an activation cycle.

A settlement device includes a scale that measures a first total weight of commodities; a wireless tag reader that reads, from a wireless tag attached to each of the commodities, a commodity code; and a camera that acquires an image of the commodities. A controller is configured to register the commodity codes; calculate, based on data that correlates commodity codes and commodity weights, a second total weight of the commodities corresponding to the commodity codes registered by the controller; recognize the commodities from the image; when the first total weight and second total weight do not coincide, register an additional commodity code that (a) was not read by the wireless tag reader and (b) correlates to one of the commodities recognized from the image; and when the first total weight and the second total weight coincide, perform settlement processing for the registered commodities.

An example dynamic packaging display includes a plurality of indicator lights, a temperature sensor, an internal clock, a processor, and a power source. The processor is communicatively coupled to the plurality of indicator lights, the temperature sensor, and the internal clock. The processor is to activate one of the plurality of indicator lights in response to an expiration of a period of time tracked by the internal clock or a temperature that is measured by the temperature sensor exceeding a temperature threshold. The power source is to provide power to the plurality of indicator lights, the temperature sensor, the internal clock, and the processor.

A system for event notification based on editing a transponder identifier is disclosed herein. The system may include a sensor system, a transponder, a transponder reader, and a controller. The system may detect an event associated with a sensor. The system may identify a transponder associated with the sensor. The system may cause the transponder to store an event identifier in a memory location of an identifier, of the transponder, to form an edited identifier. The event identifier may be associated with the event. The system may determine that the transponder responded to the query from the transponder reader. The system may store a confirmation that the event identifier was provided to the transponder reader via the transponder.

An example dynamic packaging display includes a plurality of indicator lights, a temperature sensor, an internal clock, a processor, and a power source. The processor is communicatively coupled to the plurality of indicator lights, the temperature sensor, and the internal clock. The processor is to activate one of the plurality of indicator lights in response to an expiration of a period of time tracked by the internal clock or a temperature that is measured by the temperature sensor exceeding a temperature threshold. The power source is to provide power to the plurality of indicator lights, the temperature sensor, the internal clock, and the processor.

A method for employing cycle counting is presented. The method includes interrogating, by an RFID reader, RFID tags by using a plurality of antenna ports, determining, by an activation sequencer, an activation sequence of the plurality of antenna ports that have been enabled, collecting RFID tag responses from each of the RFID tags, and matching one or more of the RFID tag responses to a particular antenna port of the plurality of antenna ports in an activation cycle.

An intelligent tracking system generally includes one or more tracking devices, some of which may be passive tracking devices. Each passive tracking device includes one or more transceivers and is energized by an energizing signal. Some of these passive tracking devices may operate in a first communication mode or a second communication mode based on the energizing signal. Some tracking devices may include encryption modules or authentication modules. Some of these devices may incorporate a bulk acoustic wave oscillator.

The present invention relates to inventory scanning using dual polarization radio frequency identification antennae for automatically reading and locating inventory.