JPS62232882A - 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.

BACKGROUND OF THE INVENTION A conventional electric blanket of this type includes an electric heater 1 and a temperature detection means 2 for detecting the temperature of the electric heater, as shown in the fourth factor.
a blanket main body 3, a temperature setting means 4 for setting the temperature of the electric heater, a switch 10 for starting preheating,
It had a timer 11 for setting a preheating time, and a control means 12 for controlling energization to the electric heater 1 based on the temperature detected by the temperature detection means 2 and a signal from the temperature setting means 4.

This configuration had the effect of turning on the switch 10, setting the preheating time with the timer 11, and automatically changing the setting from preheating to an appropriate temperature. (For example, Jikko 48-8
146).

Problems to be Solved by the Invention However, with the above configuration, when going to bed, it is necessary to manually switch the setting from the high temperature setting for preheating to the appropriate temperature setting for sleeping, which is time consuming. Generally, people often forget to switch to the appropriate temperature setting and fall asleep.
As a result, there was a problem that the person woke up in the middle of sleep because of the heat.

The present invention solves such conventional problems, and aims to automate the switching of settings at the time of admission to bed.

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 a temperature; a noise detection means for detecting electrical noise generated by the bed entry operation; a bed entry determination means for determining whether a human body has entered the bed based on a signal from the noise detection means; a setting changing means for changing the temperature setting based on signals from the determining means and the temperature setting means; and a control 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. It is equipped with the following.

Function: With the above-described configuration, the electric blanket is energized at a preset high temperature during preheating after the power is turned on, and when a human body enters the bed, the electrical noise generated by the action of entering the bed at that time is detected. Then, the temperature is automatically switched to the desired sleep temperature set by the user in advance using the temperature setting means, and thereafter, the electricity supply to the electric blanket is controlled at that set temperature.

EXAMPLE Hereinafter, an example of the present invention will be described based on the attached page. In FIGS. 1 and 2, 1 is an electric heater, 2 is a temperature detection means for detecting the temperature of the electric heater 1, and the electric heater 1 and the temperature detection means 2 are arranged in the blanket body 3. 4
5 is a temperature setting means for setting the temperature of the electric heater 1, and 5 is an electrical noise (artifact) caused by the movement of entering the bed.
In this embodiment, it is attached to the blanket body 3, but it may also be attached to the human body. Reference numeral 6 denotes bed entry determination means for determining whether a human body has entered the bed based on the signal from the noise detection means 5. Reference numeral 7 indicates a setting change means for changing the set temperature of the electric heater 1 based on the signals from the bed entry determining means 6 and the temperature setting means 4; 1 is a control means 8 that controls energization to 1. The temperature setting means 4, bed admission determining means 6, setting changing means 7, and control means 8 are attached to a controller 9. Here, as shown in FIG. 3, the noise detecting means 5 includes a detecting section 5c consisting of an electrode 5a and an accompanying lead wire 5b, and outputs a signal from the detecting section to the bed entry determining means by wire or wirelessly. and an output section 5d.

In the above configuration, when the power is turned on, the temperature setting means 4
Preheating is started at a high temperature setting regardless of the preferred sleep temperature set by the person entering the bed. After that, when the person enters the bed, electrostatic induction is induced in the electrode 5a of the detection unit 5c and the lead wire 5c due to a series of bed-entry movements such as approaching the bed, removing the futon, or crawling into the bed. occurs. This means, for example,
As shown in FIG. 4, it is well known as the noise generated by the subject's body movements and breathing during electroencephalogram measurement, and in the present invention, this noise is the physical quantity of interest for detecting bed entry. Such noise is transmitted from the detection section 5a to the output section 5d.
The information is output to the bed admission determining means 6 via wire or wirelessly. The bed entry determining means 6 outputs a signal indicating that the human body has entered the bed to the setting changing means 7 when the level of the input signal exceeds a certain value. Here, in addition to the above, as a means of determining bed admission,
If the time rate of change of the input signal exceeds a certain value, it outputs a signal indicating that a human body has entered the bed to the setting change means 7, or it analyzes the frequency of the input signal and has power in a certain frequency range. Another example is one in which, when a certain value is exceeded, a signal indicating that a human body has entered the bed is output to the setting changing means 7. In the setting change means 7, when the signal indicating bed admission from the bed admission determination means 6 is input, the set temperature is changed to the desired sleeping temperature set by the person entering the bed in advance with the temperature setting means, and the temperature is controlled. The signal is outputted to means 8. In the control means 8, energization to the electric heater 1 is controlled based on the difference between the signal from the setting change means 7 and the signal from the temperature detection means.

As a result of the above effects, there is no need to manually reset the setting scale when going to bed, and there is also the possibility of forgetting to switch to the appropriate temperature setting and falling asleep, and waking up in the middle of sleep due to the heat. It has the effect of allowing you to sleep in a safe and comfortable state.

Effects of the Invention The electric blanket of the present invention has the following effects: (1) When you turn on the power, 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. There is no need to go through the trouble of manually resetting the setting scale.

(2) You can sleep safely and comfortably without worrying about forgetting to switch to the appropriate temperature setting when going to bed and waking up in the middle of your sleep due to the heat.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an electric blanket according to an embodiment of the present invention, Fig. 2 is a block diagram of the electric blanket, Fig. 3 is a perspective view 1 of the noise detection means of the electric blanket, and Fig. 4 is a perspective view of the electric blanket when going to bed. A characteristic diagram showing the noise generated, FIG. 5 is a block diagram of a conventional example. 1...Electric heater, 2...Temperature detection means, 3...Blanket body, 4...Temperature setting means, 5...Noise Detection means, 6... Admission judgment means, 7... Setting changing means, 8...
...Control means, 9...Controller, 10...
・Switch, 11... Timer, 12...
- Control means. Name of agent: Patent attorney Toshio Nakao and 1 other person1-
11 Denki Hig 2--1 Hiroki Touko role 3-blanket body 5--1 Ionegai Shoji 5α--list 5b-11 seed° roasted skin (5d--Ichide-jj country 1st Figure 9 - Controller Figure 2 Figure 5 - Electrode 5b --- Saw F ball Figure 3 Gen - Output part Broom Figure 4 Yagi↓ - Ginma

Claims (5)

[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 detecting electrical noise caused by the movement of entering the bed. a noise detection means for determining whether a human body has entered the bed based on a signal from the noise detection means; and a bed entry determination means for determining whether a human body has entered the bed based on a signal from the noise detection means; and changing the temperature setting of the electric heater based on signals from the bed entry determination means and the temperature setting means. An electric blanket comprising: a setting change means; and a control means for controlling energization to the electric heater based on a difference between a signal from the temperature detection means and a signal from the setting change means. (2) The noise detection means consists of a detection section consisting of an electrode and an accompanying lead wire, and an output section that outputs a signal from the detection section to the bed entry judgment means by wire or wirelessly, and is connected to the blanket itself or the human body. The electric blanket according to claim 1, which is wearable. (3) The electric blanket according to claim 1, wherein the bed entry determining means outputs a signal indicating bed entry to the setting changing means when the level of the signal from the noise detection means exceeds a certain value. (4) The electric blanket according to claim 1, wherein the bed entry determining means outputs a signal indicating bed entry to the setting changing means when the time rate of change of the signal from the noise detection means exceeds a certain value. . (5) The bed admission determination means performs frequency analysis of the signal from the noise detection means, and when the power in a certain frequency range exceeds a certain value, a patented patent that outputs a signal indicating bed admission to the setting change means. An electric blanket according to claim 1.