A system includes one or more memory units and a processor. The processor is configured to receive, from a food temperature probe, a first temperature associated with a first food item. The processor is further configured to receive, from the food temperature probe, a second temperature associated with a second food item. The processor is further configured to receive, from the food temperature probe, a third temperature that was measured by the food temperature probe after measuring the first temperature but before measuring the second temperature, the third temperature associated with a cleaning of the food temperature probe. The processor is further configured to send an alert for display on a user device when the third temperature is greater than the cleaning threshold temperature.

The present invention relates to the time-temperature indicating module which allows the user to trigger the bursting of the starting member with a simple motion and generate a crack so that the spread material interposed inside spreads via the crack. The present invention also relates to the manufacturing method of the time-temperature indicating module that strengthens a sealed section of the time-temperature indicating module using laminating by heat sealing to prevent the spread material from leaking or flowing out.

A temperature indicating label for perishables includes a protective layer, a thermochromic liquid crystal layer, a silver-plated layer, an adhesive layer, and a release liner. The thermochromic liquid crystal layer is perimetrically superimposed onto the silver-plated layer. The protective layer is perimetrically superimposed onto the thermochromic liquid crystal layer. The protective layer and the silver-plated layer are oppositely positioned of each other about the thermochromic liquid crystal layer as the thermochromic liquid crystal layer displays a color-coded reading to demonstrate the measured temperature of the perishables. The adhesive layer is superimposed onto the silver-plated layer thus allowing the label to be attached to the package or the container of the food. The adhesive layer is oppositely positioned to the thermochromic liquid crystal layer as the release liner is perimetrically attached to the adhesive layer.

A method and system for cold chain monitoring of perishable goods includes at least one environmental sensor (102) to monitor at least one environmental parameter, a controller (104) to log a plurality of readings from each of the at least one environmental sensors (102), and a machine readable display (114) to display at least one alarm status associated with the plurality of readings via a barcode.

A flexible sensor label including a reservoir chamber configured to store an activation medium, a plurality of first chambers, and a plurality of second chambers. Each first chamber has an associated first temperature and stores an irreversible thermochromic polymer that is altered and irreversibly changes color in response to the activation medium being released and coming into contact with the irreversible thermochromic polymer in the first chamber and an environmental temperature of the flexible sensor label corresponding to the associated first temperature of the first chamber. Each second chamber has an associated second temperature and stores a reversible thermochromic polymer that is altered and reversibly changes color in response to the activation medium being released and coming into contact with the reversible thermochromic polymer in the second chamber and the environmental temperature of the flexible sensor label corresponding to the associated second temperature of the second chamber.

A control device for detecting a variation in temperature in an enclosure, includes a receptacle having at least one transparent surface portion including a solid solvent which is transparent and the solidification temperature of which corresponds to the maximum temperature threshold required in the enclosure, wherein a coloured composition having a different colour from the solvent has been partially diffused before the solvent is solidified.

A refrigerator is disclosed. The refrigerator is able to store food at a low temperature and to effectively remove bacteria of the food stored in a storage room, to maintain the storage room clean.

The present disclosure relates to an apparatus for sensing the temperature of a refrigerator having a deep freezer compartment. A voltage value outputted from a temperature sensing unit is amplified according to a predetermined amplification ratio. Thereby, when a temperature is measured within the same temperature range, the range of voltage values output from the temperature sensing unit may be significantly widened. The temperature sensing apparatus is particularly adapted for temperature sensing of a deep freezer compartment, which has a temperature lower than a typical refrigeration compartment or freezer compartment.

Recent progress related to energy harvesting solutions and printed electronics is opening the opportunity for a smart label to combine chemical/physical color change technology with an electronic based reader architecture, which can be achieved with printed electronics technologies and can be suitable for monitoring applications that are very cost sensitive. The smart label provides an innovative product architecture to achieve a very low cost solution to monitor packaged items during storage and shipment. Exemplary applications of the smart label include, but are not limited to, cold chain monitoring, food monitoring, and in-package control of sensitive devices, such as electronic components.

Provided is a sensor package in a refrigerator configured to provide information related to refrigerated food. The sensor package may include a body having a mark classified by a type of food allocated to the sensor package and indicating the type of food of a food to which the sensor package is coupled, a battery, an operation switch, a memory configured to store food information corresponding to the type of food corresponding to the mark, a sensor communication module that communicates with a display provided in the refrigerator, a sensing module that senses state information associated with the food, and a sensor control module that controls the sensor communication module to initiate communication between the sensor package and the display of the refrigerator based on the state information sensed by the sensing module.