Patent ID: 7630857

Claim:
An environmental information aggregating apparatus for transmitting information on an environmental aspect having a stratum structure to an external apparatus, comprising: a storage unit for storing: in correspondence with an aspect identifier for identifying the environmental aspect, measured aspect information including a measured value of the environmental aspect and a measurement time; a time section identifier indicating a predetermined time section; transmission conversion information including a coefficient for converting a numerical value of the environmental aspect in accordance with a unit system of the external apparatus and an aspect identifier for identifying the environmental aspect at the external apparatus; and aspect stratum information including: a predetermined coefficient to be multiplied by a numerical value of an environmental aspect of a lower stratum when an environmental aspect of an upper stratum is calculated from the environmental aspect of the lower stratum; an operator for one of addition, subtraction, multiplication and division for calculating the environmental aspect of the upper stratus by using the numerical value of the environmental aspect of the lower stratum multiplied by the predetermined coefficient; and an aspect identifier of the environmental aspect of the upper stratum to be calculated; and a calculating/processing unit for: calculating an aggregated value of each measured value of the environmental aspect measured during the time section, in accordance with each measurement time of the measured aspect information; calculating a numerical value of the environmental aspect of the upper stratum during the time section in accordance with the aspect stratum information; converting the calculated numerical value and the aggregated value by using the coefficient of the transmission conversion information; generating aspect information including a conversion result value, the aspect identifier of the external apparatus in the transmission conversion information and the time section identifier of the time section during aggregation; and transmitting the generated aspect information to the external apparatus.