JP3785918B2 - Seismic device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seismic sensing device that is installed in an oil-burning instrument and detects shaking that occurs when the device falls or moves or when an earthquake occurs.
[0002]
[Prior art]
As this type of conventional seismic sensing device, one disclosed in Japanese Utility Model Publication No. 61-48634 is known. The configuration will be described below with reference to FIG.
[0003]
As shown in FIG. 5, a sphere 3 is housed in a box 2 whose bottom surface 1 has a concave conical shape so that it can roll, and a disk 5 that is slidable in the vertical direction by an inner lid 4 of the box. The lower surface of the disk 5 is brought into contact with the upper surface of the sphere 3 by its own weight, the plunger 6 provided on the upper surface of the disk 5 is brought into contact with the switch mechanism 7, and the switch mechanism 7 is activated by the upward movement of the disk 5. To do.
[0004]
In the above configuration, when the box 2 vibrates or falls, the ball 3 rolls on the conical bottom 1 from the center to the end. At this time, since the distance between the bottom surface 1 and the concave spherical surface of the disk 5 is small at the position close to the end from the center, the plunger 6 is pushed up by the ball 3 entering this distance, and the contact 8 is turned on.
[0005]
[Problems to be solved by the invention]
However, since the conventional technology detects vibrations at one place, there is a problem of erroneously detecting vibrations when an impact is applied due to a collision with an object.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a first seismic sensing means for vibration detection arranged in an installation device, and a first danger for judging whether or not it is dangerous by a signal from the first seismic sensing means. It is dangerous by the determination means, the second seismic means for vibration detection arranged on the moving equipment that is moved artificially and controls the installed equipment, and the signal from the second seismic means Second risk determination means for determining whether or not the first risk determination means and the second risk determination means both determine that there is a risk, and a third risk determination means that shuts off the power supply of the installation equipment. The mobile device has a human body detection function, and when the human body is detected, the second danger determination means is set in a non-operating state .
[0007]
According to the above invention, since the risk is determined by the two risk determination means, the accuracy of the risk detection can be increased.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, there are provided a first vibration detecting means for vibration detection disposed in an installation device, a first danger determining means for determining whether there is a danger by a signal from the first vibration detecting means, and artificially A second seismic detection means for vibration detection arranged in the mobile equipment for controlling the installation equipment, and a second for judging whether or not it is dangerous by a signal of the second seismic sensitivity means A risk determination unit; and a third risk determination unit that shuts off the power supply of the installation device when both the first risk determination unit and the second risk determination unit determine that there is a risk. It has a human body detection function, and when the human body is detected, the second danger determination means is brought into a non-operating state .
[0009]
And since danger is judged by these two danger judgment means, the precision of danger detection can be made higher.
[0010]
Further, it is preferable that the non-operating state duration of the second danger determination means is performed by a timer, and further that information transmission between the installation device and the mobile device is performed by the wireless communication means.
[0011]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0012]
Example 1
FIG. 1 is a block diagram showing a seismic device according to Embodiment 1 of the present invention. In FIG. 1, the piezoelectric buzzer 9 which is the first seismic sensing means fixed to the device as the first seismic sensing means for detecting the vibration and the portable case as the second seismic sensing means are installed. The movement amount detection means 10 which is the second seismic means and the relative position change detection means, the first danger determination means 11 which determines whether there is a danger by the signal of the piezoelectric buzzer 9, and the movement amount detection means 3 The second danger judging means 12 for judging whether the signal is dangerous or not, and the third danger for performing a true danger judgment when both the first danger judging means 11 and the second danger judging means 12 judge to be dangerous. Judgment means 13 was provided.
[0013]
Here, 14 is an electric stove, 15 is a portable remote control device case, 16 is an electric heater, 17 is a power shut-off means, 18 is a return operation means, 19 is a microcomputer circuit board, 20 is a contact detection means, and 21 is stopped. Means, 22 and 23 are wireless means, 24 is a ball as a movement amount detecting means, 25 is a rotary electric converter for detecting the rotation of the ball, and 18 is a battery.
[0014]
Next, the operation and action will be described with reference to FIG. The third risk determination unit 13 outputs a true risk determination signal when both the risk determination signal is received from the first risk determination unit 11 and the second risk determination unit 12. And the disaster is prevented by turning off the power supply of the electric stove 14 by the power supply cutoff means 17. Here, the piezoelectric buzzer 9 as the first seismic sensing means and the first danger judgment means 11 are configured to be judged as dangerous when the vibration level exceeds a predetermined level for a predetermined time.
[0015]
In addition, as shown in FIG. 3, the second danger determination means 12 using the movement amount detection means 10 as the second seismic sensing means detects the rotation of the ball by the rotating electrical converter 25 when the ball 24 rotates. Then, a pulse signal is generated and the movement amount is detected by the movement amount detection means 10.
[0016]
The detected amount of movement is judged by the second danger judging means 12 whether or not it is greater than or equal to a predetermined amount of movement. For example, if the measured movement amount is 100 mm or more, it is determined as dangerous. Then, the determination output is output by the wireless means 23. The wireless signal is transmitted to the wireless means 22 of the separately provided device, and when the danger detection signal is received, the operation of stopping the machine or the like is performed. In this way, with portable devices, it is difficult to detect danger with vibration acceleration and speed signals, and it is dangerous to detect the amount of movement such as distance and compare the magnitude of the amount of movement with the reference value. If the determination is performed, the determination accuracy can be improved.
[0017]
Here, as shown in FIG. 4, the second danger determination means 4 is effective only when the contact detection means 20 is not detecting a human body. If human body detection is detected, the timer is turned on, and the second danger determination means 12 is not operated for a predetermined time T3 (for example, 10 seconds). Then, when the timer is turned off, the mode in which the second danger determination means 12 can be operated again automatically is set.
[0018]
By enabling it only when the human body is not touching, it is possible to prevent malfunction due to artificial operation. In addition, the timer is automatically turned off when the human body touches, and the danger judging means operates, so there is no failure such as forgetting to put it in.
[0019]
In this way, since the danger is detected by the two danger judging means, the danger detection accuracy can be very high. That is, the third risk determination signal does not determine that the danger is present unless both the instrument and the remote control device determine the danger signal.
[0020]
When the appliance is moved, only the first danger determination means of the appliance determines the danger, so that the movement and the danger such as an earthquake can be distinguished from each other, and it can be accurately determined whether or not it is dangerous. Further, since the first danger determination means and the second danger determination means communicate with each other by wireless means, no wiring is required, and the communication line is not cut off due to a disaster or the like.
[0021]
Further, when the seismic device is installed in a movable instrument, the danger can be detected more accurately by detecting the amount of movement and detecting the danger. This is because the movable instrument is supposed to move, and is moved frequently. The shaking that occurs at that time is very similar to the shaking of an earthquake, so that it cannot be detected accurately unless the earthquake detection method is changed to the detection method based on the amount of movement.
[0022]
In addition, when the human body is in contact, since it is a movement, it is possible to improve the risk determination accuracy of the mobile device by a method of disabling the second risk determination means. When the human body is in contact, even if an earthquake occurs, the danger can be safely avoided, so the second danger determination means does not have to operate. Even when the second risk determination means is disabled, it is enabled again after a predetermined time, so that it is not left in an invalid state, and it returns to a state in which a danger can be detected when the predetermined time elapses. be able to.
[0023]
In addition, although the case where there was one piezoelectric buzzer has been described, it is possible to further improve the accuracy by providing a plurality of buzzers on the device side and detecting vibration in a three-dimensional direction.
[0024]
【The invention's effect】
As described above, the present invention is the first vibration detection means for vibration detection arranged in the installation equipment, and the first risk determination means for determining whether or not there is a danger by the signal of the first vibration detection means. And whether or not it is dangerous by the second seismic detection means for vibration detection arranged in the mobile equipment that is moved artificially and controls the installation equipment, and the signal from the second seismic sensing means. Second risk determination means for determining, and third risk determination means for shutting off the power supply of the installation equipment when both the first risk determination means and the second risk determination means determine that there is a risk. The mobile device has a human body detection function, and when the human body is detected, the second risk determination means is set in a non-operating state, so that the accuracy of risk prediction can be increased.
[0025]
In addition, since the mobile device has a human body detection function and the second danger determination means is inactivated when the human body is detected, the movement amount becomes a predetermined value or more when the human body is touching. However, it is possible to prevent malfunctions without determining danger.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating the operation of the seismic device. FIG. 2 is a flowchart illustrating the operation of the seismic device. FIG. 3 is a flowchart illustrating the operation of the seismic device. Flow chart [Figure 5] Configuration diagram of conventional seismic device [Explanation of symbols]
9 Piezoelectric buzzer (first seismic means)
10 Movement amount detection means (second seismic means)
DESCRIPTION OF SYMBOLS 11 1st danger judgment means 12 2nd danger judgment means 13 3rd danger judgment means 14 Electric stove 15 Case 16 Electric heater 17 Power supply interruption means 18 Return operation means 19 Microcomputer circuit board 20 Contact detection means 21 Stop means 22, 23 Wireless means 24 Ball 25 Rotation detector 26 Battery

Claims (3)

The first seismic sensing means for vibration detection arranged in the installation equipment, the first risk judgment means for judging whether or not it is dangerous by the signal of the first seismic sensing means, and being moved artificially Second vibration detection means for vibration detection arranged in a mobile device for controlling the installation equipment, and second danger determination means for determining whether there is a danger by a signal from the second vibration detection means And a third risk judging means for shutting off the power supply of the installation equipment when both the first danger judgment means and the second danger judgment means judge that the danger is present, and the mobile device has a human body detection function. A seismic sensing device having the second risk determination means in a non-operating state when a human body is detected . The seismic sensing device according to claim 1, wherein the non-operating state duration of the second danger judging means is performed by a timer . The seismic device according to claim 1, wherein information transmission between the installation device and the mobile device is performed by wireless communication means .

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