JP2825968B2 - Human body abnormality detection alarm device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method in which a worker hits his / her head on a device or the like when working in a clean room, or is in a state of lack of oxygen, or falls down by inhaling toxic gas or smoke. The present invention relates to an alarm device for automatically detecting an abnormality of a human body when the user loses consciousness or becomes unable to move, and notifies the user of the abnormality with an alarm sound.

[Conventional technology]

In a conventional clean room, even if an abnormality occurs in a worker, there are many cases where another worker is nearby, and it was possible to help immediately. However, as the clean room of today's production plants is becoming more automated and the number of workers is reduced, and as the clean room becomes larger, the maintenance area in addition to the work area becomes considerably wider and more complex. Even if an abnormal condition occurs during work in the back of the building or in an annex room where no one is present, even if the worker loses consciousness, there is a risk that nobody will notice in the clean room and it may be too late. For example, in a disaster prevention drill in a clean room, there is an action of rescuing a worker assuming that the worker falls down in the back of the apparatus. In this case, assuming the occurrence of a fire in the vicinity of the device, it is very difficult to find a fallen worker unless a location is specified. At the time of actual abnormalities, even if you can confirm that you are entering the clean room, the current clean room maintenance area is complicated unless you are conscious and speak out, and it is necessary to find a fallen worker. Is extremely difficult.

Currently, various devices for notifying an abnormality and seeking rescue are commercially available. For example, there is a pager, but a pager is a one-way device that informs a person of a telephone call from outside, and informs the person by sound or vibration. If you use an inquiry form to find an abnormal person, you can't use it, but you can't use a commercially available one because of the large attenuation of the arriving radio wave and the low alarm sound in the current clean room. Therefore, since it is necessary to use a high-output type and attach an intermediate oscillation system, a large amount of cost is required for installation. In addition, not having a function of transmitting from a carrier is a fatal drawback.

There is also a pendant that contacts the rescuer by pressing a button when an abnormality occurs in the elderly for welfare for the elderly, but this can also be used only when the person is conscious, and this is also a system using a telephone line, so it is installed It costs money in terms of fees and security. Another drawback is that it cannot be used if the user is unconscious.

There are crime prevention buzzers and the like used by police to prevent molesting, but this is also a drawback to sounding the buzzer because the individual must intentionally turn on the switch string.

There are alarm devices to prevent drowsy driving by detecting inclination when worn on the head of the human body, and devices that detect abnormal posture when a sick person falls down due to seizures and emit alarm and voice information. However, since there is no function to reset an arbitrary inclination as a reference position, it is not suitable for work in a clean room.

[Problems to be solved by the invention]

As described above, by using the reset button during normal operation, it is possible to take any work posture in the clean room, and at the time of abnormal consciousness, automatically detect abnormal human body posture and emit an alarm sound At present, there is no alarm device with a mechanism.

The present invention has been made in view of the above-described case, and its purpose is to detect an abnormality in the posture of the human body when the person becomes unconscious or unable to move, or when he can not speak words, and alerts the surroundings. It emits sound, does not use a communication line even if placed in a special environment in a clean room, is small and has a high alarm sound output, and can be worn on the human body, so it is a small size that does not interfere with normal work An object of the present invention is to provide a human body abnormality detection alarm device that can take an arbitrary work posture by a reset button in a normal state.

[Means and actions for solving the problem]

In order to solve the above problems, the present invention provides a tilt sensor that outputs an electric signal according to a tilt angle between a central axis of a container and a vertical line, a data storage circuit that stores angle data from the tilt sensor, and an alarm. A control circuit including a timer circuit for delaying a signal for sounding a buzzer for a predetermined time, and a buzzer driving circuit for driving an alarm buzzer, and a signal having a tilt angle equal to or greater than a predetermined value from the tilt sensor continues for a predetermined time or more by the timer circuit. An alarm buzzer that activates and sounds a sound when the buzzer drive circuit is activated, and a reset button that clears the angle data and sets the inclination of the central axis in that posture as a new reference point so that the alarm does not sound. The tilt detection and alarm device is provided with a reset button, and when the reset button is pressed, the tilt data is displayed. It is reset and the alarm buzzer can be stopped, so that even when performing various operations that change the posture, it is possible to respond with one reset button without having to correct the position of the main body each time It is.

〔Example〕

As shown in FIG. 1, the basic configuration of the human body abnormality detection alarm device of the present invention includes a tilt sensor 1-1, a control circuit 1-2, a reset button 1-3, a power switch 1-4, a battery 1-5, and It comprises an alarm buzzer 1-6. The tilt sensor 1-1 is the center axis 1.
-7 and an electric signal corresponding to an angle 1-9 (hereinafter referred to as an inclination angle) formed between the vertical line 1-8 and the vertical line 1-8.
Send to 2. Various types of structures of the sensor 1-1 can be considered, such as a combination of a magnet and a Hall element, a configuration using a change in inductance, and a configuration using a change in capacitance. The control circuit 1-2 includes the sensor 1-1.
An amplifier circuit for amplifying the angle signal from the camera, a data accumulation circuit for accumulating the angle data, a timer circuit for delaying the signal for sounding the buzzer for a predetermined time, and a drive circuit for driving the alarm buzzer. These can be reduced in cost by being integrated as an integrated circuit. In order to prevent malfunction, the timer circuit determines that the signal from the inclination sensor 1-1 is abnormal only when the signal continues for a predetermined time or more, activates the buzzer drive circuit, and sounds the alarm buzzer 1-6. As the battery 1-5, a lithium battery having a high power density at an electromotive voltage of 3 V can be used. Button type, paper type, etc. can be selected according to the shape of the main body. In addition, battery 1-5
When the capacity of the battery is reduced, it is possible to add a function to turn on the LED or to notify the user with the buzzer sound.

Even if it is momentarily turned on (ON) due to a walking motion or the like, the alarm buzzer 1-6 does not operate unless the ON state continues for a set time or longer. In addition, when the operator lays down or kneels in maintenance work or the like, the posture is determined to be abnormal, and the alarm buzzer 1-6 sounds. At this time, the power switch 1-4 can be turned off to stop the operation. However, there is a possibility that the user may hit his head when standing up from the lying down work for maintenance work or the like and may be immobilized due to electric shock. For this reason, it is preferable to use the human body abnormality detection alarm device constantly on during the working time. In such a case, the angle data is cleared by pressing the reset button 1-3, and the inclination of the central axis in that posture can be used as a new reference point. can do. As means for notifying the surroundings, other alarm devices installed nearby can be activated by using radio waves, ultrasonic waves, infrared rays, or the like, in addition to the alarm sound.

There are various possible postures that the human body (human body) 2 can take in a clean room operation or the like. This is the second
(A) to (f). 2 (a) to 2 (f), 2-1 is when the arm is lying down, 2-2 is when the arm is shaken down, 2-3 is when the arm is crossed down, and 2- 3.
1 is when the arm is lowered directly below, 2-4 is when the arm is raised, 2-4.1 is when the arm is put forward, 2-5 is the foot, and 2-
6 is when the leg is bent (the thigh is inclined), 2-6.1 is when the leg is bent (the lower part of the knee is inclined), 2-7 is when the thigh is parallel, and 2-7.1 is below the knee If the part is oblique,
2-7.2 is when the feet are horizontal, 2-8 is the waist, 2-
8.1 is a waist up and down motion when sitting down, and 2-9 is a device.
The activities or postures in FIGS. 2 (a)-(c) fall within the normal range. The postures (d) and (e) in FIG. 2 are abnormal postures for the wafer handling operator in the clean room. Since the operation shown in FIG. 2 (f) is a walking operation, it is a normal operation.

FIGS. 3A to 3H show the operation states of the alarm device when the human body abnormality detection alarm device is attached to the ankle. FIG. 3A shows an upright posture, the inclination angle is about 0 to 10 degrees, and the inclination sensor 1-1 does not operate because it is regarded as a normal posture. FIGS. 3 (b) to 3 (d) when walking or crossing legs
The inclination angle 1-9 is at most 45 degrees, and it is determined that the posture is normal. However, in FIG. 3 (e), the inclination angle 1-9 is
At 45 degrees or more, (f) and (g) are nearly 90 degrees, and in this case, it is determined that the posture is abnormal, and the tilt sensor operates. As described above, the inclination angle of 45 degrees is one measure for defining the abnormal posture. In the work with a knee as shown in FIG. 3 (h), the inclination angle becomes 70 ° or more, but the wafer handler does not stay in a posture for a long time even if the operation is performed instantaneously. By rising within the set time, the tilt sensor 1-1 returns. If the alarm sounds after the set time, it can be canceled by the reset button. Therefore,
When the postures shown in FIGS. 3 (e) to 3 (g) are continued for a set time or longer, it is possible to automatically determine that the human body is abnormal such as being unable to stand unconsciously.

Next, a configuration example of the tilt sensor 1-1 will be described. FIG. 4 shows a magnetic detection type tilt sensor using a magnet 4-1 and a Hall element 4-6. A spherical float 4-3 integrated with a bottom magnet 4-1 and a balancer 4-2 is filled with a floating liquid 4-4 and stored in a container 4-5. A Hall element 4-6 as a magnetic sensor is attached to the lower part of the container 4-5, and all are symmetric with respect to the central axis 1-7. Floating liquid 4-4
Can use water or alcohol or oil besides water. In particular, if oil having an appropriate viscosity is used, the movement of the float can be restricted, so that an effect of preventing a malfunction such as a walking movement can be expected. The amount of the balancer 4-2 is adjusted so that the weight of the entire float 4-3 and the buoyancy are balanced. When the entire container 4-5 tilts, the position of the float 4-3 does not change, and the Hall element 4-6 moves away from the magnet 4-1 to detect the tilt as a change in the Hall voltage.

5 and 6 use ferrite 5-1 or metal 6-1 in place of the magnet, which is used for the container 5-2,6.
-2 or coil 5-3 or counter electrode 6
11 is an example of a tilt sensor that detects a tilt by capturing a change in inductance or capacitance generated when approaching −3. The disadvantages are that an AC bridge circuit is required to capture changes in inductance and capacitance, the circuit becomes complicated, and the whole sensor needs to be magnetically or electrostatically shielded.

FIGS. 7A and 7B show an example using a mercury switch. When the inclination angle is 45 degrees or less, the mercury 7-1 is in the container 7-
2 at the bottom, but when the tilt angle exceeds 45 degrees, the mercury reservoir 7-
3 and two ring-shaped electrodes 7- embedded therein.
4 is conducted. The detection angle can be determined by changing the inclination of the bottom cone of the container. Further, in applications that do not require very high detection sensitivity, for example, when it is sufficient to detect only a completely tilted posture at a detection angle of 90 degrees, the size can be reduced by adopting the shape shown in FIG. 7B. The advantages of this method are that the sensor structure is simple, the detection angle can be determined in advance, so that the threshold value for the detection angle is stable, and because the switch is always off, power is consumed during standby. That is, there is no need for an amplifier because the sensor itself has a switch function, and a reliable electric signal without chattering can be obtained because of the wet contact made of mercury. Disadvantages include the inability to fine-tune the detection angle compared to magnetic detection type tilt sensors, and the fact that mercury is a circulating pollutant and requires special disposal. FIG. 7 (c) shows an example of a method for providing a reset function in the case of a sensor using a mercury switch.
Shown in The mercury switch container 7-2 is housed in an inner hard sphere 7-5, and an outer hard sphere 7-6 surrounds the outside thereof. The two hard spheres 7-5 and 7-6 are separated via lubricating oil or bearings and can rotate freely. The balancer 4-2 fills the lower part of the inner hard sphere 7-5. When the reset button 1-3 is pressed, the hinge-shaped spring-loaded stopper 7-7 opens, and the inner rigid sphere 7-5 becomes vertical with the center axis 1-7 vertical by the weight of the mercury 7-1 and the balancer 4-2. It rotates to the position and is reset mechanically. When the reset button 1-3 is released, both rigid spheres 7-5,
7-6 is fixed and reset to the new reference position.

The use of the human body abnormality detection alarm device is not only intended for clean room workers, but also for general work, factories, construction contractors, cleaning contractors, drug importers, elderly people, infants, physically handicapped people, hospital patients, etc. It can be used when you fall down and need to ask for help. In addition, by making the appearance lightweight and compact, rich in design and fashion, it is possible to make the appearance without resistance.

 Next, an application example will be described.

The present invention can be applied not only to workers in production factories and clean rooms, but also to general workers (eg, construction contractors, cleaning contractors, chemical delivery contractors), toilets and baths for elderly people, infants, persons with disabilities, hospital patients, etc. It is an alarm device that you want to carry at all times because it can be used when you suddenly fall down and need to ask for help in the surroundings. To be specific, if you are an industrial person, manholes, tanks, tunnels,
It is a means to notify other workers or the outside with an alarm sound when they fall down due to nitrogen gas, oxygen deficiency, injury, etc. due to special work at the bottom of the ship.

In the case of cleaning companies and chemical importers, individuals work in various places, liquids and chemicals fall down, warning devices when they want help, and when they become unwell due to illness during single action and lose consciousness Depending on the medical condition, there may be a case where death occurs over time. In these cases, it is useful for publicizing the surroundings.

In the case of an elderly person, especially when the house goes outside at night due to “dementia” or the like, and the family is due to a nurse, it is useful to detect when standing up as an abnormality.

In the case of a physically handicapped person, when walking alone or moving in a wheelchair, the person falls down and has a spokesman function when words cannot be spoken, which is useful for seeking help from others.

In the case of hospital patients etc., when a patient who needs rest on a bed etc. must maintain a supine posture, if a warning device is installed so that it can be detected as abnormal when standing up, notify the surrounding nurses etc. Can be.

In the case of an infant, it is useful in an accident such as falling down and fainting when playing alone, being taken away by someone, or being lost in posture due to falling into the river.

In the case of a skier or a mountaineer, it is a means for emitting oscillating sounds, radio waves, or smoke when distressed or lost, etc. to notify friends.

In the case of elderly people, it will be useful as an alarm device that detects when a person has a seizure in a toilet or bathroom at home and falls over, in preparation for an aging society in the future.

In the case of off-road vehicles, the vehicle is inclined and dangerous angles,
Used as a warning device in the case of tilt.

In the case of an object that is lost, it is used by incorporating it into an object that is difficult to find, such as a baseball, a golf ball, a gate ball, a mallet golf ball, and the like.

If you let us know when you fall, such as a bicycle or motorcycle,
Traffic accidents and gasoline fires can be minimized.

If you are equipped with dangerous objects (furniture, block walls, stone lanterns, monuments, leaning timbers, tombstones, etc.) when you fall due to an earthquake, you can inform the surroundings that you will fall with a slight inclination.

It can be used to protect animals (for example, turtles) that are turned upside down in nature protection. It can be applied equally widely. In addition, the following functions can be added according to the purpose and application of use. For example, a structure that does not emit dust is convenient for clean rooms, an explosion-proof structure is convenient for construction and chemical work, and a waterproof structure is convenient for outdoor work.

The appearance and mounting method of the security device will be described.
FIG. 8 (a) shows an example in which the appearance is a business card size box shape. Power switch 1-4 and reset button 1 on the side
-3, the name of the box is 8-1, the date of birth 8-2,
Various ID information, such as blood type 8-3, affiliation or contact information 8-4, home TEL 8-5, family hospital / physician 8-6, can be entered. In addition, if the card type is thin, a magnetic tape or memory IC can be attached to the back to register various information about the patient's illness, such as medical history and test data. It is also possible to input other information and messages. The box type can be attached directly to the band of the pants by attaching a clip to the back. Also, it can be similarly attached to the outside of the shoe. Further, FIGS. 8 (b) and 8 (c)
As shown in (1), the card-type alarm device may have a pocket 801 in the work pants 8 so that the card is always inserted and used.

FIG. 9 (a) shows a bracelet-type alarm device 9 used for general women and the like, and as shown in FIG. 9 (b), it can be directly attached to the ankle. Further, as shown in FIG. 10 (a), the plate-type alarm device 10 can be used with a fashionable feeling by attaching it with a chain. An example of the attachment is shown in FIG.

FIG. 11 (a) shows a brooch type alarm device 11 having a lovely appearance. As shown in FIGS. 11 (b) and (c),
It is also possible to attach to a part of the skirt 1101 or a part of the socks 1102 in one point. As an application example, the twelfth
The alarm devices 1201 and 1202 for decorative shapes shown in FIGS. 2A and 2B may be used, or may be attached to a part of socks or pants as shown in FIGS. 2E and 2D. Any shape that is fashionable, cute, lightweight, thin and convenient to carry may be used.

As described above, in the conventional clean room operation, when the normal state is normal, the reset button can be used to take any work posture, and when an abnormality such as losing consciousness to the human body occurs, the abnormal posture is automatically detected. There is no alarm device to notify. Until now, call whistle, molester prevention buzzer
There are security calls for calling assistance and rescue spots for the welfare of the elderly, but they can be used only when the individual is conscious. In addition, wireless calling has the disadvantage of high system cost due to the use of a dedicated line. According to the present invention, when the human body has fallen down or cannot move due to an abnormality, when the human body has not been conscious and has fallen for a certain period of time and has not moved, it is determined that the human body is in an abnormal posture and an alarm sounds. When the body is standing up, the alarm sounds will go off. When working with a slanted or tilted posture, the reset button can be used to register it as a normal position. The shape is
Because it is small, thin and lightweight, it can be installed anywhere. Most of the working posture of the human body in the clean room is standing, sitting on a chair, or walking. In this case, the part with a relatively small inclination is the waist. Other postures are special cases such as maintenance. If you feel sick or lose consciousness and your body becomes abnormal, you won't suddenly fall over, and you will usually end up in a crouching position,
It is in a lying position such as sideways or prone. For this reason, abnormal postures of the human body (measuring the heart rate is the best way to detect abnormalities in the human body, but it is not easy to attach a heart rate monitor to the chest, etc.) It is preferable to attach it to the lower limb or the waist as a place where it is easy to judge whether or not there is time.) If an abnormality occurs in a very narrow place, the posture may be crouched. In this case, it is preferable that the portion below the knee is used as the judgment place. However, when performing maintenance or the like, depending on the working posture, there is a case where it is necessary to form a cross-hair or to lie down from the knee. In these cases, it is also possible to transfer to the trunk, head, upper arm and the like. The present invention is a box type that can be attached to the waist and shoes of the human body, a bracelet type that can be attached around the ankle, knee, calf, a broach type that can be attached to the chest or clothing, a key holder type, a pen holder type, a card type that can be put in a pocket, etc. This is a small and light type human body abnormality detection and alarm device that can be of various appearances and can be attached to any part.

〔The invention's effect〕

The effect of the present invention is that when the posture of the person does not change for a certain period of time when the consciousness of the person is lost, it is possible to detect abnormal human body movement, sound an alarm sound and seek rescue from surrounding people, You can save precious human lives. Since it is a portable type, it can emit an audible alarm in the case of abnormal operation regardless of where it is in a special environment in a clean room. It is small, thin and lightweight, and does not feel uncomfortable when attached to a part of the human body. Since the main body is not systemized with a carrier, the cost of one unit is low. It has a function that can be worn when working alone, such as clean room occupants, other general contractors, and cleaning workers, and is effective in ensuring work safety during emergency situations such as disaster prevention and injuries. In addition, while the aging society and the life expectancy are progressing, the youth is becoming more trivial. On the other hand, it is one of the psychological effects that the public can learn to be able to help each other by speaking with people who cannot move or speak who cannot speak and SOS alarm sounds.

[Brief description of the drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a block diagram showing a basic configuration of a human body abnormality detection alarm device, and FIGS.
(F) is an explanatory view showing how to move the body of the clean room worker, FIGS. 3 (a) to (h) are explanatory views showing the operation status of the alarm device when the human body abnormality detection alarm device is attached to the ankle,
4 is a cross-sectional view showing a magnetic detection type tilt sensor using a magnet and a Hall element, FIG. 5 is a cross-sectional view showing a tilt sensor using a change in inductance, and FIG. 6 is a tilt sensor using a change in capacitance. 7 (a) is a configuration diagram showing a tilt sensor using a mercury switch, FIG. 7 (b) is a configuration diagram showing a tilt sensor (small type) using a mercury switch, FIG. (C) is a cross-sectional view showing an example of adding a reset function to a tilt sensor using a mercury switch, FIG. 8 (a) is a configuration diagram showing an example of a card type alarm device, FIG. 8 (b), (c) )
Is an explanatory view showing an example of mounting a card type alarm device, FIG. 9 (a) is a configuration diagram showing an example of a bracelet type alarm device, FIG. 9 (b) is an explanatory diagram showing an example of mounting a bracelet type alarm device, FIG. 10 (a) is a configuration diagram showing an example of a plate type alarm device, FIG. 10 (b) is an explanatory view showing an example of mounting a plate type alarm device, and FIG. 11 (a) is an example of a broach type alarm device. 11 (b) and (c) are explanatory diagrams showing an example of mounting a broach type alarm device, and FIGS.
(D) is a figure which shows the alarm device of another form, and an example of installation. 1-1: tilt sensor, 1-2: control circuit, 1-3
... Reset button, 1-4 ... Power switch, 1-5
... Battery, 1-6 ... Alarm buzzer, 1-7 ... Center axis of sensor, 1-8 ... Vertical line, 1-9 ... Tilt angle, 2 ...
Human body, 2-1 ... When the arm is lying down 2-2 ... When the arm is shaken down 2-3 ... When the arm is crossed down 2-3-1 ... The arm is directly below When unloaded, 2-4 ...
When the arm is raised, 2-4.1 ... When the arm is extended, 2-5 ... When the legs are bent, 2-6 When the legs are bent (the thighs are inclined), 2-6.1 ... … When the leg is bent (the lower part of the knee becomes oblique), 2-7… When the thighs become parallel, 2-7.
1 ... when the lower part of the knee is inclined, 2-7.2 ... when the foot is horizontal, 2-8 ... waist, 2-8.1 ... waist up and down movement when sitting down, 2-9 ... device, 4-1: magnet, 4-2: balancer, 4-3: float, 4-
4 Floating liquid 4-5 Container 4-6 Hall element 5-1 Ferrite 5-2 Container 5-3
... Coil, 6-1 ... Metal, 6-2 ... Container, 6-3 ...
... counter electrode, 7-1 ... mercury, 7-2 ... container, 7-3
... Mercury reservoir, 7-4 ... Electrode, 7-5 ... Inner hard sphere,
7-6: outer hard sphere, 7-7: stopper, 8-1
... name, 8-2 ... date of birth, 8-3 ... blood type, 8
-4: Affiliation or contact information, 8-5: Home TEL, 8-
6 Your family hospital or attending physician.

Claims (1)

(57) [Claims] 1. A tilt sensor for outputting an electric signal corresponding to a tilt angle between a central axis of a container and a vertical line, a data storage circuit for storing angle data from the tilt sensor, and a signal for sounding an alarm buzzer. A control circuit including a timer circuit for delaying time and a buzzer driving circuit for driving an alarm buzzer; and a buzzer drive when a signal of a predetermined or more tilt angle from the tilt sensor continues for a predetermined time or more by the timer circuit. An alarm buzzer that activates a circuit and sounds a sound, and a reset button that clears the angle data and disables the alarm sound with the inclination of the central axis as a new reference point in that posture. To detect and detect abnormalities in the human body.