JPS62232885A - Electric blanket - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an electric blanket, and more particularly to a control device thereof.

2. Description of the Related Art A conventional electric blanket of this type includes an electric heater 1 and temperature detection means 2 for detecting the temperature of the electric heater, as shown in FIG.
a blanket main body 3, a temperature setting means 4 for setting the temperature of the electric heater, a switch 9 for starting preheating, a timer 10 for setting the preheating time, and a signal from the timer 10 and a temperature detection means 2. Temperature detected by and temperature setting means 4
The electric blanket was equipped with a control means 8 for controlling energization to the electric heater based on a signal from the electric heater. With this configuration, the switch 9 was turned on, the preheating time was set using the timer 10, and the temperature was automatically returned to the appropriate temperature setting. (For example, Japanese Utility Model Publication No. 48-8176.) Problems to be Solved by the Invention In the method using a timer as described above, it is very time-consuming because it is necessary to turn on the preheating switch and set the timer. . In addition, you do not necessarily go to bed at the time set on the timer, and if you go to bed earlier than the time set on the timer, the temperature will remain set at a high temperature, so you will have to turn off the timer. If you fall asleep without turning off the timer, the temperature of the blanket will be too high, making you feel hot and uncomfortable. Also, it is necessary to manually turn off the electric blanket when waking up.
This has the problem that it is time consuming and that people often forget to cut it.

The present invention is intended to solve these conventional problems, and aims to automate the switching of settings when going to bed, and to automatically stop energization when waking up.

Means for Solving the Problems In order to solve the above-mentioned problems, the electric blanket of the present invention includes a blanket body provided with an electric heater and a temperature detection means for detecting the temperature of the electric heater, A temperature setting means for setting the temperature, a sound detection means for detecting sounds generated from the room, the bed, or the human body provided in the electric blanket body, and determining whether to go to bed or wake up based on the signal from the sound detection means. a determination means comprising a determination unit; a setting change means for changing the temperature setting according to a signal from the temperature setting means and a signal from the determination means; and a difference between a signal from the temperature detection means and a signal from the setting change means. and control means for controlling energization to the electric heater.

Operation According to the above-described configuration, the electric blanket is energized at a high set temperature during preheating after the power is turned on.

When it is determined that the signal detected by the sound detection means is due to a person entering the bed, the temperature is set from the high temperature setting during preheating to the desired sleeping temperature set in advance by the person entering the bed using the temperature setting means. The temperature will automatically switch, and from then on, the power supply to the electric blanket will be controlled at that set temperature. Also, if it detects the sound caused by waking up, it will automatically turn off the power.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 4. In the present invention, as shown in FIGS. 1 and 2, an electric heater 1 and a temperature detection means 2 for detecting the temperature of the electric heater 1 are disposed in a blanket body 3, and the electric heater 1
a temperature setting means 4 for setting the temperature of the electric blanket body a; a sound detecting means 5 attached to the head side end of the electric blanket body a (a position where breathing sounds and heartbeats from the human body can be easily detected); and the sound detecting means 5
A judgment means 6 receives signals from the judgment means 6 to determine whether to go to bed or wake up based on the frequency level of breathing sounds, heartbeats, etc., a setting change means 7 which changes the temperature setting based on the signal from the judgment means 6, and a setting change means. 7 and a control means 8 for controlling energization to the electric heater 1 based on a signal from the temperature detection means 2.

As shown in FIG. 3, the determination means 6 includes a filter section 5& that selects only the frequencies of breathing sounds and heartbeats from the signal frequency-analyzed by the sound detection means 5, and a filter section 5& that selects only the frequencies of breathing sounds and heartbeats from the signal frequency-analyzed by the sound detection means 5, and a filter section 5& that selects only the frequencies of breathing sounds and heartbeats from the signal frequency-analyzed by the sound detection means 5, and and a determining section 5b that determines whether to go to bed or wake up based on the level of the frequency.

When electricity is started with this electric blanket, preheating is started at a high temperature setting by the temperature setting means 4, regardless of the desired sleeping temperature set by the person entering the bed in advance. Sound detection means 5 attached to one end of the blanket body constantly analyzes the frequency of sound, and when a person enters the bed afterwards, the level of the frequency of breathing sounds and heartbeats generated from the human body increases. When this frequency reaches a certain level or higher,
The determination means 6 determines that a person has entered the bed, and the setting change means 7 receives this signal and changes the setting from the high temperature setting for preheating to the desired temperature for sleeping set in advance by the person entering the bed using the temperature setting means 4. automatically changes to

Thereafter, the amount of energization is controlled by the control means at this set temperature. Therefore, you don't have to worry about manually resetting the setting scale, and you don't have to worry about forgetting to switch to the appropriate temperature setting and falling asleep, and waking up in a hot sleep. You can sleep in comfortable conditions.

Also, when you wake up, it is determined that you have woken up because the frequency levels of your heartbeat and breathing sounds have fallen below a certain level, and the setting change means 7 receives this signal and turns on the electricity to the electric blanket. It can also be stopped. Therefore, when you wake up, the power supply is automatically stopped, and there is no need to take the trouble to manually stop the power supply as in the past.

Effects of the Invention According to the electric blanket of the present invention, the following effects can be obtained (1) When the power is turned on, it automatically starts up at a high temperature setting, and when you go to bed, it automatically switches to the temperature setting suitable for sleeping. , without the hassle of manually resetting the setting scale,
Furthermore, I forgot to switch to the appropriate temperature setting and fell asleep.
You won't wake up in the middle of your sleep because of the heat, and you can sleep in peace and comfort.

(2) Since the power supply is automatically stopped when the user wakes up, there is no need to manually stop the power supply as in the past, which saves time and effort.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an electric blanket according to an embodiment of the present invention, Fig. 2 is a plan view of the electric blanket, Fig. 3 is a block diagram of the determination means, and Fig. 4 is a frequency analysis diagram of the electric blanket. FIG. 5 is a block diagram of a conventional example. 1... Electric heater, 2... Temperature detection means, 3... Electric blanket body, 4... Temperature setting means, 5... Sound detection means, 6...
Judgment means, 7... Setting change means, 8...
- Control means. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 3 Figure 4

Claims (3)

[Claims] (1) A blanket body equipped with an electric heater and a temperature detection means for detecting the temperature of the electric heater, a temperature setting means for setting the temperature of the electric heater, and a blanket body equipped with an electric heater and a temperature detection means for detecting the temperature of the electric heater, and a temperature setting means for setting the temperature of the electric heater. a sound detection means for detecting; a determination means for determining whether a person has entered bed or woke up based on a signal from the sound detection means; and a temperature setting means and setting of the temperature setting means based on a signal from the determination means. An electric blanket comprising: a setting changing means for changing temperature; and a controlling means for controlling energization to the electric heater based on a difference between a signal from the temperature detecting means and a signal from the setting changing means. (2) A patent in which the determination means comprises a filter section that selects a certain specific frequency of the signal from the sound detection means, and a determination section that determines whether to go to bed or wake up based on the level of the frequency selected from the filter section. An electric blanket according to claim 1. (3) The electric blanket according to claim 1, wherein one end of the electric blanket is provided with an attachment part to which a sound detection means can be attached.