BIOLOGICAL STATE ACQUISITION DEVICE, BIOLOGICAL STATE ACQUISITION PROGRAM, APPARATUS PROVIDED WITH BIOLOGICAL STATE ACQUISITION DEVICE AND, AIR CONDITIONER

摘要

PROBLEM TO BE SOLVED: To provide a biological state acquisition device and the like that acquires biological signals of a biological body in a non-contact manner and can acquire information related to the biological state without performing complicated processing such as frequency analysis with respect to the biological signals.SOLUTION: Biological state acquisition means 52 transmits an electromagnetic wave to a body surface of a biological body, IQ detects its reflection wave, sequentially acquires an I signal and a Q signal in time series and acquires a state of the biological body on the basis of a locus on an I-Q plane of acquisition signals acquired. The biological state acquisition means 52 for acquiring the state of the biological body comprises: stability calculation means 58 for calculating an index of stability of the locus on the I-Q plane of acquisition signals acquired by IQ signal acquisition means 51; and autonomic nerve state determination means 54D for determining a state of an autonomic nerve on the basis of the index of the stability calculated by the stability calculation means 58. The stability is an inverse of a number of pixels used for the locus and is a value becoming smaller as unstability increases when the I-Q plane is defined as a quantized finite plane constituted of M×M pieces of pixels.