The present invention relates to a sensing and control device (40) and method for a weight measurement device (30) comprising a load unit for loading material to be weighted. To enable precise measurement with less expensive components, said sensing and control device comprises analog circuitry (50) configured to receive a weight measurement signal, convert the received weight measurement signal into a first voltage signal, subtract a second voltage signal representing the weight of at least the load unit without being loaded with material to be weighted from the first voltage signal when the load unit is loaded with material to be weighted to generate a third voltage signal representing the weight of the material to be weighted, and control circuitry (60) configured to receive the first voltage signal while the load unit is not loaded with material to be weighted, convert the first voltage signal into a first digital signal, and generate a pulse width modulated, PWM, signal having a pulse width representing the weight measured by the load unit while not being loaded with material to be weighted, and further configured to convert the third voltage signal into a second digital signal representing the weight measurement of the material to be weighted. The analog circuitry (50) is configured to generate the second voltage signal from the PWM signal generated by the control circuitry, wherein the voltage level of the second voltage signal is proportional to the pulse width of the PWM signal.

A terminal device, server, weighing scale, system and method for weighing an article are provided. The system (800) includes the terminal device (802), the server (804) and the weighing scale (806). These components communicate with each other to weigh an article placed on the weighing scale. The method of weighing the article includes receiving, at a terminal device, a selection of a container from a user for storing an article, retrieving a weight of the selected container from a first look-up table, wherein the first look-up table includes a container identifier and an associated container weight for one or more containers; prompting, by the terminal device, the user to place the container storing the article onto a weighing scale, the weighing scale being associated with a weighing scale identifier code; receiving the weighing scale identifier code of the weighing scale, inputted or scanned on the terminal device by the user; retrieving, at the server, the weight measurement value associated with the weighing scale identifier code from a second look-up table, the weight measurement value corresponding to the combined weight of the container and the article; and subsequently calculating the weight of the article from the difference between the weight of the container and the combined weight of container and the article.

An electronic scale performs a post-weighing calibration in which the user steps on the scale, and the scale provides an estimated weight based on the scale's stored tare weight determined after the previous weighing performed by the scale. The person steps off of the scale while the estimated weight is displayed, and the scale automatically performs the calibration process to determine the scale's tare weight and verifies the weight. The estimated weight is shown with an orange ellipsis, and the verified weight is shown with a green checkmark. The scale compares the stored tare weight with the new tare weight, and if the difference between the stored tare weight and the new tare weight is within a variation threshold, the scale identifies the weight as being verified. If the difference exceeds the variation threshold, the scale recalculates the weight, displays the corrected weight, and produces a tone as an alert.

The luggage scale strap attaches to a luggage item as a shoulder strap. The luggage scale strap weighs the luggage item, detects changes in the weight of the luggage item, and alerts an appropriate authority when a weight change has been detected by the luggage scale strap in the luggage item. The presumption of the disclosure at bar is that a weight change in the luggage item indicates to the appropriated authority that something has been inappropriately added to or removed from the luggage item. The luggage scale strap comprises a shoulder strap, a control circuit, a personal data device, and the luggage item. The shoulder strap contains the control circuit. The shoulder strap attaches to the luggage item. The control circuit monitors the weight of the luggage item. The control circuit notifies the appropriate authority about weight changes in the luggage item through the personal data device.

The present invention relates to a sensing and control device (40) and method for a weight measurement device (30) comprising a load unit for loading material to be weighted. To enable precise measurement with less expensive components, said sensing and control device comprises analog circuitry (50) configured to receive a weight measurement signal, convert the received weight measurement signal into a first voltage signal, subtract a second voltage signal representing the weight of at least the load unit without being loaded with material to be weighted from the first voltage signal when the load unit is loaded with material to be weighted to generate a third voltage signal representing the weight of the material to be weighted, and control circuitry (60) configured to receive the first voltage signal while the load unit is not loaded with material to be weighted, convert the first voltage signal into a first digital signal, and generate a pulse width modulated, PWM, signal having a pulse width representing the weight measured by the load unit while not being loaded with material to be weighted, and further configured to convert the third voltage signal into a second digital signal representing the weight measurement of the material to be weighted. The analog circuitry (50) is configured to generate the second voltage signal from the PWM signal generated by the control circuitry, wherein the voltage level of the second voltage signal is proportional to the pulse width of the PWM signal.

The present invention relates to a system (1a; 1b; 1c; 1d; 1e) for preparing foods (100), comprising a housing (10) for receiving the food (100), a recognition device (20) for recognizing at least one food carrier (200) couplable with the system (1a; 1b; 1c; 1d; 1e), and thereby recognizing the weight of the food carrier (200), as well as a determining device (40) for determining the tare weight of the food based on the detected weight of the food carrier (200).

A scale includes a load detection unit detecting a load to a placing unit, a storage unit storing a zero point in advance, a calculation/control unit calculating a load calculation value using a load signal corresponding to the load to the placing unit, based on an output of the load detection unit, and a display unit displaying the load calculation value. When a load is applied to the placing unit, the calculation/control unit calculates a loading state load calculation value based on the load signal in a loading state and the zero point of the storage unit. Subsequently, when the load is removed from the placing unit in a non-loading state, the calculation/control unit calculates a non-loading state load calculation value based on load signals in the loading and non-loading states, and displays the non-loading state load calculation value on the display unit.