Abstract: An environment adjustment method mainly includes changing a color tone and lowering ambient temperature. The color tone of an image displayed or projected on a display is changed to one having a calming effect. Then, the ambient temperature is lowered after changing the color tone.

Abstract: A biological rhythm is adjusted based on a time difference as well while individually dealing with moving subjects that move in accordance with moving schedules. In step S1, information including the moving schedule and biological information on the moving subject is input. In step S2, a sleeping schedule is set based on the information obtained in step S1. Step S2 is roughly divided into two steps. In the first step, parameters for setting the sleeping schedule are set based on the moving schedule and the biological information. In the next step, the sleeping schedule is set with the parameters obtained in the first step.

Abstract: A sleeping state improvement system to improve a sleeping state of a user includes a memory device and a control device that comprises a specification unit and a control unit. The memory device can be carried by the user. The specification unit specifies individual attribute information of the user based on individual information. The individual information is information stored in the memory device. The control unit controls an environment during sleep of the user based on the individual attribute information.

Abstract: An environment adjustment system mainly includes an air conditioner and a display. The air conditioner includes a temperature adjustment control part, a transmission part, and a temperature adjustment part. The display includes a projection control part, a reception part, and a projection part. The temperature adjustment control part causes the transmission part to transmit a control instruction to the display. The control instruction causes the display to control the color tone of an image. The reception part receives the control instruction transmitted from the air conditioner, and the projection control part causes the projection part to display an image with a color tone having a calming effect based on the control instruction. After that, the temperature adjustment control part causes the temperature adjustment part to lower ambient temperature.

Abstract: A sleeping state improvement system to improve a sleeping state of a user includes a memory device and a control device that comprises a specification unit and a control unit. The memory device can be carried by the user. The specification unit specifies individual attribute information of the user based on individual information. The individual information is information stored in the memory device. The control unit controls an environment during sleep of the user based on the individual attribute information.

Abstract: A biological rhythm is adjusted based on a time difference as well while individually dealing with moving subjects that move in accordance with moving schedules. In step S1, information including the moving schedule and biological information on the moving subject is input. In step S2, a sleeping schedule is set based on the information obtained in step S1. Step S2 is roughly divided into two steps. In the first step, parameters for setting the sleeping schedule are set based on the moving schedule and the biological information. In the next step, the sleeping schedule is set with the parameters obtained in the first step.