JPH0394736A - Method and device for informing and alarming abnormality in physical condition - Google Patents

Abstract

PURPOSE:To inform and alarm abnormality in a physical condition by transmitting a pulsating ultrasonic wave intermittently, and receiving a reflected wave from a substance relating to a human body, a part of the human body, or the head part of the human body. CONSTITUTION:A modulated ultrasonic pulse is radiated from a transmitter 3 by driving with a signal obtained by controlling an oscillator 2 with a transmission pulse oscillator 1, and the signal returned by reflecting on the substance relating to the human body, a part of the human body, or the head part of the human body is received with a receiver 4, and a reception signal is amplified and waveform-arranged by the amplifier 5 of a reception circuit, then, a reception pulse can be obtained. At this time, when the pulse is the one with pulse width longer than a time (t0) equivalent to a preset distance, an (a) signal of level 1 judging whether or not it is nearer than the preset distance or it is due to the neighboring state of the head part of the human body by the breakdown of the physical condition is issued, and abnormality information is propagated from an information generator 12 by operating a voice generation circuit 11 by taking the AND circuit 10 of the (a) signal with the signal delayed by a time (t1) at a first delay circuit 9. Furthermore, an abnormality alarm is propagated by operations an alarm generator 15 by,taking an AND circuit 14 via a second delay circuit 13.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention transmits pulsed ultrasonic waves intermittently, and also transmits reflected waves from objects or parts of the human body.
Or by receiving reflected waves from the human head,
Between the human head and an object related to the human body, or between a part of the human body,
Alternatively, it detects the proximity between a human head between a transmitter and a receiver installed on one end of a plate or plate facing the human body, or between a transmitter and receiver unit and the human head. The present invention relates to a method and a device for notifying/warning abnormalities in body position, in which a different notification/warning is given when an abnormality is detected during that time.

[Objective of the Invention] The object of the present invention is to measure the distance between a human head and an object related to the human body, between a human head and a part of the human body, or at one end of a disk or plate facing the human body. between the human head of the transmitter and receiver, or between the transmitter and receiver unit and the human head, that is, between the human head and an object related to the human body, or between a part of the human body, Or between the human head of a transmitter and a wave receiver provided at one end of a disc or plate shape facing the human body,
Alternatively, it is possible to objectively and acoustically clearly notify whether or not a set distance or more is maintained between the transmitter and receiver units and the human head using different signals such as warnings and calls for attention. An object of the present invention is to provide a method and device for notifying/warning abnormalities in body position.

[Prior art and its problems] Conventional body posture-related devices include a body inclination detection device using a sensor that detects inclination, a headband-type posture checker using an angle sensor and a buzzer, or a commercially available inclination detection device. In devices related to this type, such as posture correction alarms using sensor microswitches, mercury switches, and differential transformers, the quality of the body position is determined by the correlation between the head of the human body and objects or parts of the human body. The inability to measure distances is fatal, and it also has the drawbacks of individual differences in how it is worn, and the need for troublesome positioning.

[Means and effects to be solved by the invention] The present invention has been made in view of the above points, and the transmitter 3 is driven by a signal obtained by controlling the oscillator 2 with the transmitting pulse oscillator 1. As a result, the transmitter emits pulse-modulated ultrasonic pulses as shown in Figure 2 (A), and the modulated ultrasonic waves are reflected back to an object related to the human body, a part of the human body, or the human head. The received signal is received by the receiver 4,
The received signal is amplified and waveform-shaped by the amplifier 5 of the receiving circuit to become a received pulse. As shown in Figure 2 (B), the received pulse signal shows that the ultrasonic wave is transmitted between the human head and an object related to the human body.
Or just the time it takes to travel back and forth between a part of the human body, or between a transmitter/receiver installed on one end of a disc or plate facing the human body and the human head, or from the transmitter/receiver unit to the human head. It lags behind the transmitted pulse. The signal output from the transmitting pulse oscillator and the modulated transmitting pulse radiated from the transmitter are reflected from an object related to the human body, a part of the human body, or the human head, and a receiving pulse signal is input to the flip-flop 6. Then, the distance from the human head to an object related to the human body or a part of the human body, or the distance from the transmitter and receiver installed at one end of the board or plate facing the human body to the human head, or the transmitter A pulse with a time width proportional to the distance from the receiver unit to the human head (Fig. 2C) is obtained, and the time width T of the pulse proportional to these distances is output from the transmitting pulse oscillator. This is the time difference between the transmitted pulse and the received pulse reflected from an object or part of the human body, or the received pulse reflected from the human head. The distance from the transmitter/receiver attached to the glasses or object to the object or part of the human body, or the distance from the transmitter/receiver or the transmitter/receiver unit to the human head. To establish.

The time width of the pulse is proportional to the distance from the human head to an object related to the human body or a part of the human body, or from the transmitter/receiver to the human head, or from the transmitter/receiver unit to the human head. T signal to one-shot circuit 7
and latch 8 respectively, the one-shot circuit generates a time width t corresponding to the set distance from the rising edge of the input pulse.

The latch control signal shown in FIG. 2 (D) is output. Time t corresponding to the set distance. Later, the latch is held by the rising edge of the one-shot circuit's latch control signal returning to its original state.

Therefore, the latched output is the time t when the input pulse width corresponds to the set distance. If it is shorter, the input pulse is at the O level when the latch control signal (D) in FIG. 2 rises, so the O level is latched and output. Also, the time t corresponding to the distance set by the input pulse width. If it is longer, the 1 level is still being maintained when the latch control signal (D) in FIG. 2 rises, so the 1 level is latched and output.

By inverting the latch output, the time t corresponding to the set distance is determined. In the case of a longer pulse width, the first level determines whether the pulse signal is blocked by an object or part of the human body that is closer than the set distance, or whether it is due to the human head approaching due to a change in body position. When the signal shown in Figure 2 (E) a is emitted, and the pulse width is shorter than the time t0 corresponding to the set distance, the set distance is exceeded, that is, it is normal, which is the 0 level Figure 2 (E) b
signal is obtained. Next, the 1 level a signal, which is closer than the distance set by the first delay circuit 9 of the signal delay section, is 1. By using the AND circuit 10 of the time-delayed signal, as shown in FIG. 2(F), only the pulses that remain at the 1 level for more than t1 time are passed, and the sound generation circuit l1 of the notification section is activated. It operates to propagate an abnormality notification from the notification generator 12.

Furthermore, as shown in FIG. 2 (G), the state of level 1 is t
AND circuit 14 for a signal in which a pulse that lasted for one hour or more is delayed by t1 time via the second delay circuit 13 of the warning generating section.
By taking these steps, only the pulses that last longer than t2, which is the state in which the pulses in FIG.

[Example 1 An embodiment of the present invention will be described below.

When studying, reading, etc., take the correct body position for the overall health of the eyes and the whole body, and check whether the appropriate distance between the desk surface and the human head is maintained. The abnormality notification/warning method and device monitors and indicates that the body is in a bad position within a set distance when the body position collapses and the head approaches the desk surface, or when an object or part of the human body approaches the head. It calls attention to different situations with different signals: notifications and warnings. At this time, if the distance becomes close due to a secondary cause other than a change in body position, for example, when the ultrasound waves are blocked by the movement of a hand on a desk or an object related to the human body, or when someone picks up or puts something down. It is necessary to prevent misjudgments due to improper body position. In such a case, since the approaching state is only for a very short time, the issuing of the notification signal is delayed for a certain period of time t1, and when it is determined that the system is still approaching after t1 time, the first notification is issued. signal is obtained,
An alarm generator alerts the user to abnormal body position within a set distance by voice, and the alarm signal is suppressed if the delay time is within t1.

Therefore, since a notification is issued when the approaching state is maintained for t1 or more, erroneous determination can be prevented by setting t1. In addition, if this notification signal is ignored, or if the notification state continues for a certain period of time t or more due to falling asleep, etc., a warning signal is emitted by a buzzer or the like to correct the body position or prevent falling asleep. Notification and warning methods are not limited to sounds and buzzers, but depending on the time and place, taking into account the inconvenience to others, multiple levels such as vibration, weak electric shock, LED, and colored light can be used as a means of transmitting only to the person in question and urging caution. All installations that propagate to fall within this scope. This way, you can achieve your goals and avoid bothering others, and even those who are far away can grasp the current situation by checking the lighting status of sounds and colored lights. .

[Effects of the Invention] As detailed above, under the current social circumstances, problems such as decreased visual acuity and curvature of the spine at a younger age are becoming a problem. All of these factors are affected by poor body posture, and the best way to consider this is to measure distances using the eyes as a reference when using devices related to body posture.

Therefore, one method of attaching the present invention is to fix the transmitter and the receiver according to claim 1 to the front measuring parts of glasses or an object related to the human body, so that they are placed closest to the eyes. This is the best way to determine the position in a stable and clear manner. In addition, although it is best to be close to the eyes, there may be some people who do not like glasses, so in that case, a disk or plate shape facing the human body as described in claim 2 may be used. Either a transmitter and a receiver are fixed to one end facing the human head, or a transmitter and receiver unit is fixed to one end and ultrasonic pulses are emitted toward the human head for distance measurement. This is the best way to stably and clearly determine the position of the body without any problems such as individual differences in wearing, positioning, and pressure caused by headbands. Detects objects related to the human body, parts of the human body, or the head of the human body using pulsed ultrasonic waves, and notifies you when the object related to the human body, part of the human body, or the human head approaches within a set distance. This device is equipped with a warning generating section that issues a different second notification when the condition that notifies the person continues for a certain period of time or more. Proximity between a transmitter/receiver installed at one end of an opposing plate or plate shape and the human head, or between a transmitter/receiver unit and the human head, that is, a set distance between them. It is possible to clearly and objectively and acoustically call attention to whether or not the above conditions are maintained using different signals for notification and warning.

Therefore, by adopting the method and device for notifying/warning abnormal body position of the present invention, it is possible to play a remarkable role in inculcating the habit automatically using an objective scale. By correcting abnormalities, that is, correcting the body position, it is possible to automatically establish the best environment from a health and hygiene perspective. Furthermore, considering from a parent's point of view, there is a certain amount of noise.
In other words, as long as the volume is high enough to be heard from any room in the house, the advantage of being able to stay in control of your work without directly interfering with it while you are away from your body position and study situation is a feature that cannot be overlooked.

[Brief explanation of drawings]

Fig. 2 is a circuit configuration diagram showing one embodiment of the present invention.
) to (G) are operation time charts of various parts of the alphabet in FIG. 1, and correspond to the alphabets shown in FIG. ■... Transmission pulse oscillator 3... Transmitter 5... Amplification waveform shaping circuit 7... One-shot circuit 9... lth delay circuit 11... Audio generation circuit 13... 2 delay circuit l5...warning generator 2...oscillator 4...receiver 6...flip-flop 8...latch lO...AND circuit l2...notification generator 14...・AND circuit

Claims (4)

[Claims] (1) A transmitter and a receiver are fixed to both sides of the front of glasses or an object attached to the human head, and ultrasonic pulses are emitted from the transmitter toward the front of the human body and interact with the human body. A reflection signal from an object or a part of the human body causes the human head to approach the object or part of the human body, or the object or part of the human body to approach the human head within a set time, that is, between the two. If the distance is longer than the set distance, the judgment will be suppressed, and if it continues for longer than the set time, an abnormality within the set distance between the two will be notified. If this notification state continues for the next set time or longer, the The second method of notification, that is, the method of notification/warning of abnormal body position. (2) A transmitter and a receiver, or a unit of a transmitter and a receiver, is fixed to one end of a board or plate facing the human body, facing the human head, and the distance is measured using ultrasonic pulses. The system processes the signals and determines whether the distance between the heads of the human body, between objects related to the human body, or between parts of the human body is greater than a set distance, and issues different notifications and warnings. A method to notify and warn of abnormalities in body position. (3) A transmitter and a receiver are fixed to both front measuring parts of glasses or an object attached to the human head, and the intermittent output from the transmitting pulse oscillator is converted into ultrasonic pulses from the transmitter. A wave transmitter that emits waves, a wave receiver that detects reflected waves from an object or a part of the human body, and a receiver that detects the transmitted pulses output from the transmit pulse oscillator and the waves reflected from the object or part of the human body. It consists of a processing unit that determines the distance from wave pulses and the time difference between the two, and a notification unit and a warning generation unit that are controlled based on the determination. Alerts when abnormal body position is detected.
A signal delay unit that is a warning device and suppresses a determination when an object related to a human body, a part of the human body, or a human head approaches for a short time to prevent erroneous determination;
A notification unit that alerts you to the approach of an object related to a human body, a part of the human body, or a human head when the state continues for a certain period of time or more, and a second notification that differs when the notification state continues for a certain period of time or more. An apparatus for notifying/warning abnormalities in body position as set forth in claim 1, characterized in that the apparatus is provided with a warning generator for performing the following. (4) By fixing the wave transmitter and the wave receiver according to claim 3 to one end of a disc or plate shape facing the human body, the reflection action is reversed. That is, a transmitter and a receiver, or a unit of a transmitter and a receiver, are fixed to one end of a plate or a plate facing the human body, and the reflected waves from the human head are fixed.
Alternatively, the reflected wave from an object related to the human body or a part of the human body is detected, and the wave transmitter and receiver installed at one end of a disk or plate facing the human body are installed between the human head and the transmitter and receiver. The apparatus for detecting abnormalities in body position according to claim 2, characterized in that it determines whether or not a set distance or more is maintained between the wave device unit and the human head, and issues different notifications and warnings. A device that notifies and warns.