JPH06100357B2 - Environmental control equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an environment control device that detects a sleep state during sleep and comfortably controls a sleep environment.

2. Description of the Related Art A conventional environmental control device of this type is as shown in FIG.
A detector 4 for detecting the electroencephalogram, pulse, body temperature, etc. of the human body worn on the arm or the head of the human body, a signal processing unit 5 for processing the signal from the detector 4, and a light from the environment by the signal from the signal processing unit 5.
It was composed of an environment control unit 6 for controlling environmental conditions such as sound and temperature (for example, Japanese Patent Laid-Open No. 55-101270). With this configuration, when the detector 4 detects an electroencephalogram, pulse, body temperature, etc. of the human body, the signal processing unit 5 outputs a control signal, and the environment control unit 6 outputs the environment light, sound, and temperature based on the control signal. It had the effect of controlling the environmental conditions such as.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the method of mounting the detector 4 on the human body as described above, the output signal is noisy when the feeling of wearing is uncomfortable and sleep is disturbed, or when body movement occurs during sleep. There is a problem in that normal human body information cannot be detected due to the occurrence of noise or the detector 4 moving / falling off.

Therefore, an object of the present invention is to solve such a conventional problem and determine a sleep state and control an environmental state without mounting a detector for detecting human body information on the human body.

Means for Solving the Problems In order to achieve this object, the environmental control device of the present invention is an air flow detecting means for detecting an air flow in or near the bed,
A judging means for judging a sleep state based on a signal from the air flow detecting means, and a control means for controlling an environmental state based on a signal from the judging means are provided.

Action In the above configuration, the environmental control device of the present invention detects the airflow in the bed or in the vicinity of the bed to determine the sleep state, and controls the environment state based on the sleep state at that time to bring about a comfortable sleep environment. Have.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. In FIG. 1, reference numeral 1 is an airflow detecting means which is arranged in a bed and is composed of a wind speed sensor 1a which detects an airflow speed in the bed, and 2 is a judgment means which judges a sleep state from a signal from the wind speed sensor 1a. A reference signal generator 2a that generates a preset reference signal, a comparator 2b that compares the signal from the wind speed sensor 1a with the signal from the reference signal generator 2a, a timer 2c, and a signal from the timer 2c are input. It is composed of a counting unit 2d that counts the number of times the signal output from the comparing unit 2b is output, and a sleep state determining unit 2e that determines the sleep state based on the signal from the counting unit 2d. Reference numeral 3 is a control means for controlling the environmental condition in the bed according to the signal from the sleep condition determining part 2e, which is an electric blanket here, but controls the environmental condition in the vicinity of the bed such as an air conditioner or a fan heater. It may be a device. here,
The signal from the wind speed sensor 1a can be wired or wireless
It is output to 2b. Further, the wind speed sensor 1a may be installed near the bed such as a pillow and detect the airflow speed near the bed.

When the room temperature or the temperature inside the bed is too high during sleep, the sleep becomes shallow due to discomfort and the body movement frequently occurs. However, when the body movement occurs, the airflow in or near the bed changes. Therefore, the sleep state can be indirectly determined by detecting such a change in air flow in or near the bed. Therefore, when the threshold for determining whether the airflow velocity level in the bed is due to body movement is V _o , in the above configuration, the reference signal generator
In 2a, if the above threshold V _o is set as the reference signal in advance, the air velocity V _i in the bed will be determined by the wind velocity sensor 1a.
When V _o ≦ V _i is detected, a signal is output to the counting unit 2d if V _o ≦ V _{i, and} if V _o > V _i , a signal indicating that no body motion has occurred is detected. Processing such as no output is performed. In the counting unit 2d, the number of times the signal from the comparing unit 2b is output during a certain fixed time determined by the timer 2c is output to the sleep state determining unit 2e, which is counted by the sleep state determining unit 2e based on FIG. If the number is large, the sleep state is shallow, and if the count is small, the sleep state is deep.
Based on the output signal of this determination result, the control means 3, that is, the electric blanket, changes the set temperature based on the sleep state according to the relationship of FIG. 3 to control the temperature inside the bed to an appropriate temperature.

By the above action, the air condition in the bed is detected to indirectly determine the sleep state and the environmental condition in the bed is controlled, and thus a detector for detecting human body information is attached to the human body as in the conventional case. There is an effect that a comfortable sleep state can be obtained without the discomfort of wearing as in the method and the malfunction due to the movement / dropping of the detector.

In addition, when entering the bed or waking up, a larger airflow change occurs due to the movement of the bedding than when the body moves.Therefore, if the change in the airflow is detected, it is possible to detect entering the bed and waking up. It is also possible to control the environment so that it is easy to fall asleep when entering the bed, and to raise the room temperature by an air conditioner or the like when getting up, or to stop the energization of the sleeping warming tool.

EFFECTS OF THE INVENTION As described above, according to the environmental control device of the present invention, the environmental condition is controlled by indirectly determining the sleeping state by detecting the air flow change in the bed or in the vicinity of the bed. In addition, there is an effect that a comfortable sleeping state can be obtained without the discomfort of wearing the detector that detects the human body information on the human body and the malfunction due to the movement or dropping of the detector.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the environment control device of the present invention, FIG. 2 is a characteristic diagram showing the relationship between body movement and sleep state, and FIG.
FIG. 4 is a characteristic diagram showing a relationship between a sleep state and a set temperature, and FIG. 4 is a block diagram of a conventional environment control device. 1 ... Air flow detection means, 2 ... Judgment means, 3 ... Control means, 4 ... Detector, 5 ... Signal processing part, 6 ... Sleep environment control part.

Claims (1)

[Claims] 1. An airflow detecting means for detecting an airflow in or near the bed, a judging means for judging a sleep state based on a signal from the airflow detecting means, and a signal inside the bed or near the bed based on a signal from the judging means. Environment control equipment consisting of control means for controlling the environmental condition of.