JP2003164056A - Earthquake-sensing cutoff outlet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a false operation by detecting earthquake vibration from vibrations in daily life or a shock. <P>SOLUTION: A power source circuit 1 for driving, a seismoscope 2 detecting vibration, an earthquake decision part 3 for loading algorithm with an earthquake intensity corresponding to a measured earthquake intensity and an SI value and for discriminating the vibration into an earthquake and a daily vibration, a control means 4 for outputting a power cutoff signal in response to a given distinction output of the earthquake decision part 3, and a cutoff means 5 to cutoff power according to the power cutoff signal of the control means 4, are provided. Also a restoring means 6 are provided for restoring power after cutting it, and a storage case 9 equipped with a plug 7 mounted on the electric outlet and a receptacle 8 outputted from a cutoff circuit cutting the power. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to household electrical outlets, and more particularly, to a seismic isolation outlet that detects and detects vibrations during an earthquake and shuts off power supply to electrical products. .

[0002]

2. Description of the Related Art A conventional seismic isolation outlet of this type will be described with reference to FIG.

In FIG. 6, a power supply circuit 1 for driving, which is provided from the supplied electric power, is provided with a vibration detector 2 for detecting vibration, a control means 4 and a cutoff means 5. Here, 6 is a returning means, 7 is a plug, 8 is a receptacle, and 9 is a receptacle.
Is a storage case.

[0004]

However, the above-mentioned conventional structure has a problem in that when an acceleration of a certain value or more is applied, not only seismic vibration but also vibration and shock caused by daily life cause malfunctions. Also, in the earthquake determination, the seismic motion itself is operated at an acceleration of 80 to 250 Gal to output a signal, and the seismoscope itself outputs only an on / off signal. It was not possible to directly detect certain accelerations, etc., so there was an accuracy problem in earthquake judgment. Furthermore, it was difficult to understand the relationship between seismic intensity and damage, and the degree of risk from an earthquake was not clear.

It is an object of the present invention to realize a seismic isolation socket capable of highly accurate seismic determination by preventing malfunctions due to vibrations and shocks caused by daily life.

[0006]

The present invention is equipped with an algorithm of the seismic intensity corresponding to the measured seismic intensity and the SI value, detects the seismic intensity of the earthquake by the combination of the measured seismic intensity and the SI value, and An earthquake determination unit for determining whether the vibration is a living thing is provided, and the determination output is used to shut off the power to prevent malfunction of the seismic isolation outlet.
This provides a highly accurate seismic isolation outlet without malfunction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is such that the power supply circuit provided from the supplied power, the seismoscope for detecting an earthquake, and the output of the seismoscope correspond to the measured seismic intensity. It is equipped with an algorithm of seismic intensity and SI value to detect the seismic intensity of the earthquake based on the combination of the measured seismic intensity and the SI value, and determines whether it is an earthquake or a living vibration. Control means for outputting a power cutoff signal, cutoff means for cutting off the power in response to the power cutoff signal from the control means, return means for returning the power after the power is cut off, a plug attached to an electric outlet and the power The storage case is equipped with a receptacle that is output from a shutoff circuit that shuts off.

Then, the seismic detector output is judged and outputted by the seismic judgment section having a judgment logic having seismic wave characteristics and shock characteristics (living vibration), and the power is cut off.
In order to prevent malfunctions due to daily vibrations and to detect earthquakes using a combination of measured seismic intensity and SI value, the relationship between earthquakes and damages is accurately grasped, and the risk level of earthquakes is detected with high sensitivity and high accuracy. , You can always realize stable earthquake judgment.

The invention according to claim 2 is further provided with a capacitance type acceleration sensor for detecting vibrations in the horizontal and vertical directions. Since it can be directly detected by, the earthquake determination can be made more sensitive and highly accurate.

Further, the invention according to claim 3 is configured such that the start of the calculation and the determination of the earthquake is based on the detection signal of the acceleration sensor, and the power consumption is only the sensor driving circuit which is always operating, and the low power consumption is achieved. And economical.

Further, the invention according to claim 4 is configured so as to output a danger signal by judging the combination of the seismic intensity corresponding to the measured seismic intensity and the SI value. The danger due to the judgment can be notified accurately and promptly.

Further, the invention according to claim 5 is provided with a driving power supply circuit, and by providing the driving power supply circuit, an additional function of a seismic isolation outlet for power failure such as warning of a dangerous state can be realized. .

[0013]

Embodiments of the seismic isolation outlet of the present invention will be described below with reference to FIGS. 1 to 5. FIG. 1 is a block diagram of a seismic isolation outlet of Example 1, FIG. 5 is another seismic isolation outlet configuration diagram, FIG. 5 is a determination waveform diagram of an earthquake determination unit, and FIG.
3A and 3B are a configuration diagram and an operation description of a three-dimensional acceleration sensor.

(Embodiment 1) In FIG. 1, a power supply circuit 1
Is supplied with power from a commercial power source and is used as a driving power source. When the seismic sensor 2 receives an acceleration of earthquake vibration or life vibration, it is configured to output according to the vibration frequency. The seismic determination unit 3 receives the output signal of the seismic sensor 2 and mounts an algorithm of the seismic intensity corresponding to the measured seismic intensity and the SI value, and detects the seismic intensity of the earthquake by the combination of the measured seismic intensity and the SI value. A judgment logic for distinguishing between an earthquake and daily vibration is provided, and if the judgment logic is met, it is judged as an earthquake and a cutoff signal is output.

Here, the definition of the SI value will be described in detail.

The SI value (Spectral Intensity) is a concept that has recently been adopted as a measure of the strength of an earthquake, assuming that it is the vibration energy of the structure that is responsible for the ultimate failure of the structure during an earthquake. Is defined by the following formula.

[0017]

[Equation 1]

FIG. 2 shows the amount calculated by the above formula, in the velocity response spectrum with the damping constant h = 20% (0.2), with the average amplitude in the section of the fixed period T = 0.1 to 2.5 s. Yes, the average height of the shaded area in the figure is an example in Aomori of the 1968 Tokachi-oki earthquake.

In the Tokachi-oki earthquake, the maximum acceleration was 258 gal and the SI value was 40 kine, and the earthquake damage was large. Despite showing acceleration, the SI value is 19 kine, and as is clear from the fact that no earthquake damage occurred, it is possible to directly detect acceleration, which is the basis of calculation of earthquake motion, and seismic intensity and SI value. It is possible to accurately grasp the relation between the earthquake and the damage, detect the degree of danger due to the earthquake with high sensitivity and accuracy, and always obtain a stable earthquake determination.

The control means 4 receives the cutoff signal from the seismic determination section and cuts off the electric power by means of a relay provided in the circuit of the cutoff means 5. The restoring means 6 outputs an on or off restoration signal to the control means 4 by means of a switch, so that power is restored by a relay provided in the circuit of the breaking means 5. The driving power source is supplied from a plug 7 attached to an electrical outlet, and the power source 1 supplies a power source conforming to the driving power source specification.

The electric power supplied from the plug 7 is supplied to the electric product from the receptacle 8 through the power source 1 and the relay contact of the breaking means. The storage case 9 stores the above-mentioned components, and has the plug 7 fixed to the surface to be attached to the electrical outlet and the receptacle 8 fixed to the opposite surface.

(Embodiment 2) In FIG. 3, a driving power supply circuit 11, a three-dimensional acceleration sensor 12, and a danger degree notifying means 13 are provided separately from the supplied power.

The seismic isolation socket of the present embodiment provides a high-function safety outlet by improving the seismic isolation function with high earthquake detection accuracy to the conventional household electric outlet having only the power distribution function. In order to realize a highly functional security outlet, the operation and action will be described below. The output of the seismoscope 2 that has detected the vibration is detected by the earthquake determination unit 3 having a determination logic that folds the low-frequency (5 Hz or less) earthquake waveform and the high- to low-frequency life vibration waveform as shown in the waveform of FIG. The judgment output is made and the control means 4 cuts off the power by the cut-off means 5.

The discriminating logic discriminates based on the frequency and acceleration for a predetermined time after the vibration is detected.

(Embodiment 3) Further improving the seismic accuracy, the electrostatic capacitance type of FIG. 5 detects three-way vibrations of X-axis, Y-axis, and Z-axis, and outputs three-dimensional acceleration sensor 12 for vector synthesis.
Use to detect vibration. The three-dimensional acceleration sensor 12 is of the electrostatic capacitance type and has high accuracy with very little detection error due to the mounting posture. The output of the three-dimensional acceleration sensor is calculated into the seismic intensity and SI value corresponding to the measured seismic intensity, the determination is performed, and the dangerous state is notified according to the determination. In addition, the dangerous state notifying means notifies the dangerous state by warning, power cutoff, lamp display of the degree of danger, and voice notification.

Further, in order to realize a high function, a driving power source 11 is provided in addition to the power supply, and a necessary security function can be added after an emergency power cutoff due to an earthquake, power failure, or disaster. Furthermore, for the purpose of improving the security function, it is possible to prevent damage from a disaster by accurately and promptly notifying a disaster by highly sensitive and highly accurate detection of an earthquake.

[0027]

As described above, according to the seismic isolation outlet of the present invention, the following effects can be obtained.

A power supply circuit for driving provided from the supplied power, a seismic detector for detecting vibration, and an algorithm of the seismic intensity and SI value corresponding to the measured seismic intensity of the output of the seismic absorber are installed.
An earthquake determination unit that detects the seismic intensity of the earthquake with a combination of the measured seismic intensity and the SI value with high accuracy, and distinguishes between the earthquake and the living vibration.
A control unit that outputs a power cutoff output in response to a predetermined judgment output of the earthquake judgment unit, a cutoff unit that cuts off the power by the power cutoff output of the control circuit, a return unit that cuts off the power and then returns to the power, and an electric outlet. Improves seismic vibration detection accuracy by providing a storage case equipped with a plug that is installed and a receptacle that is output from a cutoff circuit that cuts off power.
It is possible to provide a seismic isolation outlet with high functionality and high safety by alerting the degree of danger.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a seismic isolation outlet according to a first embodiment of the present invention.

FIG. 2 is a diagram for explaining the SI value used as a measure of the strength of an earthquake.

FIG. 3 is a configuration diagram of a seismic isolation outlet according to a second embodiment of the present invention.

[Fig. 4] (a) Waveform diagram when the earthquake determination unit using the same outlet determines that it is an earthquake (b) Waveform diagram when the earthquake determination unit determines that it is a shock waveform due to living vibration

FIG. 5A is a configuration diagram of a three-dimensional acceleration sensor. (B) Operation flow chart of the three-dimensional acceleration sensor

[Figure 6] Configuration diagram of a conventional seismic isolation outlet

[Explanation of symbols]

1 power supply circuit 2 shock absorber 3 Earthquake determination section 4 Control means 5 Blocking means 6 Restoration means 7 plug 8 receptacle 9 storage cases 11 Power supply circuit for driving 12 3D acceleration sensor 13 Risk degree notification means

Claims (5)

[Claims] 1. A seismic determination unit that determines the output of the seismic sensor as the seismic intensity of an earthquake according to a driving power supply circuit, a seismic sensor that detects vibrations, and an algorithm of seismic intensity corresponding to the measured seismic intensity and an SI value. A control unit that outputs a power cutoff signal upon receiving a predetermined judgment output from the earthquake judgment unit, and a cutoff unit that cuts off the power by the power cutoff signal of the control unit;
A seismic isolation outlet having a storage case that includes a returning unit that returns the power after the power is shut off, a plug that is attached to an electrical outlet, and a receptacle that outputs a signal from a shutoff circuit that shuts off the power. 2. The seismic isolation outlet according to claim 1, wherein the seismic sensor includes a capacitance type acceleration sensor for detecting vibrations in horizontal and vertical directions. 3. The earthquake judging section starts the calculation and judgment of the earthquake based on the detection signal of the acceleration sensor.
The seismic isolation outlet described. 4. The seismic isolation outlet according to claim 1, 2 or 3, wherein the seismic judgment section judges the combination of the seismic intensity corresponding to the measured seismic intensity and the SI value and outputs a danger signal. 5. The acceleration sensor, the sensor driving circuit, and the earthquake determination unit are driven by a built-in charger.
The seismic isolation outlet according to any one of 1.