The invention relates to a waking state detecting device for
sleep state analysis, which comprises a brain electrical
electrode, a
reference electrode, an analog-
digital converter, a filter circuit and a processor, wherein the brain electrical
electrode and the
reference electrode are connected with the analog-
digital converter respectively, and are connected to the processor sequentially through the analog-
digital converter and the filter circuit; the brain electrical
electrode is used for detecting a brain electrical
signal of a user during sleep; the analog-digital converter converts the brain electrical
signal into a
digital signal; the filter circuit performs low-
frequency filtering on the brain electrical
signal and then inputs the signal to the processor; the processor extracts the real-time brain electrical signal of the user, performs
wavelet decomposition on the real-time brain electrical signal and performs
signal reconstruction according to the set low-frequency-band
wavelet coefficient to obtain the brain electrical signal; the
sample entropy of the brain electrical signal is calculated and then is compared with the
sample entropy threshold value; when the
sample entropy is larger than the sample entropy threshold value, the device judges that the user is in the waking state at present. The waking state detecting device for
sleep state analysis provided by the invention can accurately detect the waking state of the brain electrical signal, so that the accuracy rate of
sleep state identification is effectively increased.