Problem to be solved is to solve the action state of the subject in a simple and accurate manner.A behavioral state judgment system for judging an action state of an objectMattress placed in the area pressed by the upper body of the subject in the bed on the beddingA first sensor for acquiring a direct current component organism signal of the subject through the mattress andA second sensor for acquiring an AC component bio signalInformation processing apparatus for performing information processing based on sensor values acquired by said sensorsEquipped withInformation processing apparatusThe DC component biological signal andAccept one or more threshold values for the AC component biosignalDC component biological signalAC component biosignal andBased on the thresholdThe action state of the prescribed time unit is judged.Multiple threshold valuesSaid sensor value in a detached state orBy using the sensor value in a state of absence and no body motionIs set.Diagram
