Patent ID: 8278570
Filing Date: 2012-10-02
Classification: G01G

Abstract:
1. An intellectual scale with a plurality of chemical management modes, comprising: a weighing unit arranged for measuring a weight of a chemical and generating a measurement signal; and the chemical being measured is accommodated in a container which has a radio-frequency identification (RFID) tag attached thereto for generating a wireless signal; a wireless signal receiving unit arranged for receiving the wireless signal and demodulating the received wireless signal into an identification signal; at least one key being used to input a switch signal; and a control unit with the chemical management modes, wherein the chemical management modes include: a stocktaking mode, under which the control unit checking and recording the type and a remaining quantity of the chemical; a lending mode, under which the control unit recording conditions of the chemical at the time of being lent for use; a return mode, under which the control unit recording conditions of the lent chemical at the time of being returned; an exhaustion mode, under which the control unit recording an exhaustion condition of the chemical; the control unit receiving the switch signal and switching to one of the chemical management modes based on the received switch signal; and the control unit also identifying a type of the chemical according to the identification signal and obtaining the weight of the chemical according to the measurement signal; further the control unit recording the type of the chemical and the weight thereof corresponding to a current chemical management mode under the chemical management modes, wherein the control unit compares the chemical under the lending mode with the chemical under the return mode to thereby record a use state of the chemical, and the control unit comprises an internally built threshold value, wherein the control unit transmits a warning signal to a warning unit when a difference between the weight of the chemical before using and after using exceeds the threshold value.