JP2001184574A - Drowning accident monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drowning accident monitoring device, with which the drowning accidents of plural swimmers can be easily monitored without providing any facility on the side of environment. SOLUTION: This device is provided with a drowning sensor 2 to be worn by a person 1 to be monitored and a supervisory terminal 4 to be used for a supervisor 3 at least one each, the drowning sensor 2 is provided with a sinking detecting means 10 capable of detecting the sinking state of a human body part at a wearing position, the sinking detecting means 10 can be mounted on the head of the human body at least and when the sinking detecting state of the sinking detecting means 10 is continued for prescribed time, either the transmission of a radio signal or generation of an alarm is performed at least for reporting the drowning state of a wearing person 1 to the supervisor 3 automatically or on the basis of a generation request from the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drowning accident monitoring device for monitoring a drowning accident of a swimmer in a swimming pool, a beach or the like.

[0002]

2. Description of the Related Art As a device or a system for monitoring a drowning accident in a swimming pool, for example, (1) Japanese Patent Publication No. 6-1
From the image of the pool taken using an infrared camera disclosed in Japanese Patent No. 81488, a human body is detected and tracked by image processing, and it is determined whether or not the human body is submerged. Submersion detection system to make a judgment,
(2) A drowning accident is detected by detecting the movement of water when a person drowns using a sensor for detecting the movement of water in a pool disclosed in Japanese Patent Publication No. 6-181488. Warning system for drowning accidents in pools, (3) JP-A-8-
No. 13829 discloses the vertical, horizontal,
An ultrasonic exploration equipment pool in which an ultrasonic sensor for exploring in the depth direction is installed, and when the same object is stationary at the same position for a certain period of time, it is determined to be a drowning person. (4) Japanese Patent Application Laid-Open No. 10-504860 There is a monitoring device that installs two cameras in the water on both sides of the pool and detects the drowning by detecting the stillness of the object. These conventional technologies are all passive detection systems in which some kind of sensor is installed on the environment side (pool side).

[0003] However, the above-mentioned prior art requires construction work for installing some kind of sensor on the pool side and prior work, and in the existing pool, in particular, a person other than the pool manager can easily find a drowning accident. Was unsuitable for monitoring. In addition, when a plurality of swimmers (a drowning person and a non-drowning person) are in a pool, there is a problem that a stationary object and a moving object cannot be distinguished and a drowning person cannot be detected accurately. Furthermore, the above-mentioned prior art is premised on use in a swimming pool and is unsuitable for monitoring a drowning accident in the sea or river.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object to provide a method for preventing a plurality of swimmers from drowning without providing any equipment on the environment side. Another object of the present invention is to provide a drowning accident monitoring device that can easily perform monitoring.

[0005]

A first characteristic configuration of a drowning accident monitoring apparatus according to the present invention for achieving this object is as follows.
As described in claim 1 of the claims, the apparatus is provided with submergence detecting means capable of detecting that a human body part at the mounting position is submerged, and at least the submergence detecting means can be mounted on a human head. A radio signal for notifying a third party that the wearer is in a drowning state, automatically or based on an external occurrence request, when the submergence detection state of the submergence detecting means continues for a predetermined time. Or at least one of alarm generation.

[0006] The second characteristic configuration is, as described in claim 2 of the claims section, provided with at least one drowning sensor worn by the monitored person and at least one monitoring terminal used by the monitored person. The drowning sensor is provided with a submergence detecting means capable of detecting that a human body part at a mounting position is in a submerged state, and a person wearing the drowning sensor when the submergence detecting state of the submerged detecting means continues for a predetermined time. A drowning judging means for judging a drowning state, a transmitting means for transmitting a radio signal indicating a drowning judging state or a drowning non-judging state or both states of the drowning judging means, and when the drowning judging means judges a drowning state. Alarm generating means for generating an alarm, and at least the submergence detecting means can be mounted on the human head, the monitoring terminal transmits the drown sensor of the transmitting means Receiving means capable of receiving the wireless signal, detecting the determination state of the drowning determination means from the reception content of the wireless signal of the receiving means, displaying the determination state or generating an alarm indicating the drowning determination state Informing means for performing at least one of the above.

[0007] The third feature is that, as described in claim 3 of the claims, at least one drowning sensor worn by the monitored person and at least one monitoring terminal used by the monitored person are provided. The drowning sensor is provided with a submergence detecting means capable of detecting that a human body part at a mounting position is in a submerged state, and a person wearing the drowning sensor when the submergence detecting state of the submerged detecting means continues for a predetermined time. Drowning judging means for judging a drowning state, transmitting means for transmitting a radio signal indicating the drowning judging state or the drowning non-judging state or both states of the drowning judging means, and a radio signal from the monitoring terminal can be received. Receiving means, the receiving means receives a radio signal of an alarm generation request from the monitoring terminal, and at least the drowning determination means is in a drowning determination state, or If specified, or, in both cases, comprises an alarm generating means for generating an alarm, and at least the submergence detecting means can be mounted on the human head, the monitoring terminal, Reception means capable of receiving the radio signal transmitted by the transmission means of the drowning sensor, transmission means for transmitting a radio signal of an alarm generation request to the drowning sensor, and reception contents of the radio signal of the reception means And a notification means for detecting the determination state of the drowning determination means and performing at least one of displaying the determination state or generating an alarm indicating the drowning determination state.

[0008] The fourth feature configuration is, in addition to the third feature configuration, as described in claim 4 of the claims section, in addition to the above-mentioned third feature configuration, a radio signal of an alarm generation request transmitted by the monitoring terminal is provided. The sensor identification information of the drowning sensor for which an alarm is requested is attached, and the alarm generation unit recognizes that the self is specified as the alarm generation request target from the sensor identification information attached to the wireless signal. It is possible.

The fifth feature configuration is a wireless signal transmitted by the drowning sensor in addition to the second, third or fourth feature configuration, as described in claim 5 of the claims section. Has its own sensor identification information attached thereto, and the notifying means identifies the wearer in a drowning state based on the sensor identification information and displays the judgment state of the drowning judgment means or is in a drowning judgment state. At least one of the following alarms.

According to a sixth aspect of the present invention, at least one drowning sensor worn by a monitored person and at least one monitoring terminal used by the monitored person are provided, as described in claim 6 of the claims. The drowning sensor is provided with submergence detecting means capable of detecting that a human body part at a mounting position is in a submerged state, and state data indicating a submerged detection state or a submerged non-detection state or both states of the submergence detecting means. Transmitting means for transmitting a wireless signal with its own sensor identification information, receiving means capable of receiving a wireless signal with the sensor identification information from the monitoring terminal, and wireless communication from the monitoring terminal received by the receiving means And alarm generation means for generating an alarm when it is recognized that the self is specified as an alarm generation request target from the sensor identification information attached to the signal, and at least the Water detecting means a mountable on a human head, the monitoring terminal includes receiving means capable of receiving the radio signal which the transmitting means has transmitted the drowning sensor,
Submersion time measuring means for measuring the elapsed time of the submersion state for each of the drowning sensors based on the status data of the radio signal and the sensor identification information attached thereto, and the drowning sensor measures the submersion time measured by the submersion time measuring means. It is characterized by comprising a submersion time display means for separately displaying, and a transmission means for transmitting a radio signal of the alarm generation request with the sensor identification information of the drowning sensor of the alarm generation request target.

[0011] In a seventh aspect of the present invention, in addition to the sixth aspect of the present invention, the monitoring terminal may be replaced with the submersion time display means as described in claim 7 of the claims. In addition, a drowning determination unit that determines that the user is in a drowning state when the submersion time measured by the submersion time measurement unit is equal to or longer than a predetermined time, and the drowning determination unit based on the reception content of the wireless signal of the reception unit The notification that detects the wearer in the drowning state based on the sensor identification information and displays at least one of the display of the determination state and the generation of the alarm indicating the drowning determination state. Means.

[0012] The eighth feature of the present invention, in addition to the fifth, sixth or seventh feature of the present invention, is that the monitoring terminal includes the drowning sensor. Request transmission means for wirelessly transmitting a transmission request signal for requesting transmission of the wireless signal from the transmission means of the drowning sensor, wherein the drowning sensor transmits the transmission request signal transmitted by the request transmission means. Transmission request receiving means capable of receiving the transmission request signal, the transmission means of the drowning sensor attaches its own sensor identification information when the transmission request reception means receives a transmission request signal designated as a transmission request target by itself. And transmitting the wireless signal.

The sensor identification information in the above-mentioned fourth to eighth characteristic configurations depends on a communication system used for transmission / reception between the drowning sensor and the monitoring terminal, and includes predetermined digital data as digital information such as a sensor identification code. In the case of transmission / reception by a communication method, or in a digital data communication method in which a unique channel is assigned to each drowning sensor in advance, the channel itself has sensor identification information, and each drowning sensor has When a unique frequency is assigned and transmission / reception is performed using a carrier for each frequency, that frequency has sensor identification information.

The operation and effect will be described below. According to each characteristic configuration of the drowning accident monitoring device according to the present invention, the fact that the head of the swimmer is continuously submerged for a long time is usually other than the diving method, especially when the swimmer is an infant or a beginner. If
Since it is impossible, if the submergence detection state of the submergence detection means continues for a predetermined time, it is possible to determine that the swimmer wearing the apparatus on the head is in a drowning state, and the drowning state is determined by a third party. Can be informed, and the drowning accident can be easily monitored without installing any sensor or the like on the environment side. Therefore, the present apparatus can be used without choosing a monitoring place. In addition, even if one or more drowners are present among a plurality of swimmers, the presence of the drowners can be reliably detected because a wireless signal is transmitted or an alarm is generated from the device attached to each of the swimmers. be able to. In addition, if a warning is an alarm sound, a warning message, a warning light, etc., which can be directly perceived by a human, the position where the drowner exists can be easily confirmed.

In particular, in the case of the first characteristic configuration, the observer can detect the presence of the drowning person by receiving the radio signal with appropriate receiving means or by perceiving the occurrence of the alarm.

The determination as to whether the swimmer is in a drowning state
In the second to fifth feature configurations, the drowning determination unit on the drowning sensor side performs the drowning determination unit on the monitoring terminal side in the seventh feature configuration, and the drowning time on the monitoring terminal side in the sixth feature configuration. The monitoring is performed based on the duration of the submerged state displayed on the display means. In the case of the second to fifth and seventh feature configurations, the determination is made automatically, and in the case of the sixth feature configuration, a submergence time display means is provided as a support means that enables the monitor to make the determination. In any case, it can be determined that the head of the swimmer is continuously submerged for a long time and is in a drowning state. In addition, the monitoring person must be in the drowning state by the notification means (in the case of the second to fifth and seventh characteristic configurations) or the submersion time display means (in the case of the sixth characteristic configuration) provided on the monitoring terminal side. Can be recognized. In particular, in the case of the fifth and seventh characteristic configurations, the notification means can identify the monitored subject in the drowning state by the sensor identification information, and in the case of the sixth characteristic configuration, the drowning time display means By displaying the submersion time for each sensor, the observer can identify the subject who is in a drowning state, and knows which of the monitored persons is in a drowning state. As a result, the watcher can identify the drowner by calling the name of the drowner and take rescue, and other swimmers close to the drowner immediately notice it,
Early relief is promoted.

In the second to fifth characteristic configurations, since the drowning determination means on the drowning sensor side makes a drowning determination, the transmitting means of the drowning sensor determines the determination state (a drowning state, a non-drowning state, or both). Is transmitted to the monitoring terminal side, and the monitoring terminal receives the signal, thereby notifying the monitoring person of the determination state by the notification means. In particular, in the fifth characteristic configuration, if the transmission means is set to transmit at least a signal in a non-drown state with its own sensor identification information as a determination state, a failure occurs in the drowning sensor for some reason. Or, if communication is interrupted and the monitoring terminal cannot receive a radio signal, it is possible to identify which drowning sensor is causing the occurrence of the abnormality based on the fact and find it at an early stage. In the sixth and seventh characteristic configurations, since the drowning judging means or the monitoring person performs drowning judgment on the monitoring terminal side, the transmitting means of the drowning sensor detects the drowning state by the submergence detecting means (submerged state, non-submerged state, or both). ) Is transmitted to the monitoring terminal and received by the monitoring terminal, so that the immersion time measuring means can measure the duration of the immersion state. As a result,
As described above, in the seventh characteristic configuration, the drowning judging means on the monitoring terminal side, in the sixth characteristic configuration, the monitoring person based on the duration of the submerged state displayed on the submersion time display means on the monitoring terminal side. However, the drowning determination can be performed respectively. Also in this case, if the transmission means is set to transmit at least a signal of a non-submerged state as a detection state, a failure occurs in the drowning sensor for some reason or communication is interrupted,
If the monitoring terminal becomes unable to receive the radio signal, it is possible to identify which drowning sensor is causing the occurrence of the abnormality based on the fact, and to find it early.

Further, in the second to eighth characteristic configurations, the drowning sensor worn by the monitored person is provided with the alarm generating device, so that the alarmed device generates an alarm so that the monitored person in the drowning state can receive the alarm. The watcher can easily detect where he is, and can notify the normal swimmer of the surroundings of the drowning state, so that early rescue can be achieved.
In the case of the second characteristic configuration, when the drowning judging means makes a drowning judgment, the alarm generating device automatically generates an alarm. On the other hand,
In the case of the third, fourth, sixth and seventh characteristic configurations, an alarm is generated upon receiving an alarm generation request from the monitoring terminal. In this case, the alarm is consciously generated by the monitor using the monitor terminal. Therefore, a drowning sensor that requires an alarm to be generated, that is, a monitored person can be selected and a warning can be forcibly generated. Therefore, even if the user is not in a drowning state, the position of the monitored person requiring caution is appropriately confirmed. be able to. Further, the alarm generation device also functions as an alarm generation unit for a monitored person approaching a dangerous area due to bathing in the sea or playing in a river. In particular,
In the fourth, sixth and seventh characteristic configurations, the transmitting means transmits an alarm generation request with sensor identification information from the monitoring terminal side, and thereby the sensor identification attached to the alarm generation request received by the drowning sensor side. By determining whether the information matches or includes the sensor identification information of the own device, it is possible to identify that the information is specified as a warning requesting target, and to generate a warning based on the determination. In addition, it is also possible to select all of the monitored persons and to generate an alarm unconditionally. In this case, the monitoring person needs to know where the monitored persons are and how they are dispersed. Becomes possible.

Further, in the case of the third characteristic configuration, since the drowning determination means is provided on the drowning sensor side, even if the monitoring terminal transmits an alarm generation request without designating the drowning sensor, the drowning determination means is provided. It is also possible to generate an alarm only for a drowning sensor that is in a drowning determination state. Therefore, in the case of the third characteristic configuration, if the alarm generation request is constantly transmitted without specifying the drowning sensor from the monitoring terminal side, the same effect as the second characteristic configuration can be obtained, and the drowning sensor can be used. Any specified alarm generation request is also possible.

In the eighth characteristic configuration, each transmitting means in the second to seventh characteristic configurations transmits each predetermined radio signal to the monitoring terminal based on a transmission request from the monitoring terminal side. The transmission request receiving means can receive wireless signals from the plurality of drowning sensors in a time-division manner, and can simultaneously receive the same wireless signal from the plurality of drowning sensors to avoid interference between the drowning sensors. As a result, there is no need to take special measures to prevent interference between a plurality of terminals, and a simple communication method can be used. In addition, even if the data communication method has a plurality of channels, if the number of drowning sensors is greater than the number of channels, communication between the monitoring terminal and a specific drowning sensor must be performed using an empty channel. In the transmission from the drowning sensor side, it is necessary to search for an empty channel on the drowning sensor side. However, in this characteristic configuration, by using the channel used in the transmission request signal, the search for the empty channel becomes unnecessary. . When transmitting a radio signal in response to a transmission request from the drowning sensor, the transmitting unit transmits only a radio signal of the determination or detection state of the drowning determination unit or the submergence detection unit without attaching its own sensor identification information. However, in principle, the monitoring terminal can identify which drowning sensor is transmitting the signal. However, if the transmitting means on the drowning sensor side attaches the sensor identification information to the wireless signal, the identification can be performed more reliably. For example, if one drowning sensor transmits a radio signal in spite of no transmission request due to a malfunction, the monitoring terminal side does not receive a radio signal from the drowning sensor that requested transmission, but the other drowning sensor on the monitoring terminal side. It is possible to prevent an error or interference caused by erroneously receiving a wireless signal from a drowning sensor that has requested transmission.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a drowning accident monitoring apparatus according to the present invention (hereinafter, appropriately referred to as "the present invention apparatus") will be described with reference to the drawings.

As shown in FIG. 1, the apparatus of the present invention includes at least one of a drowning sensor 2 worn by a swimmer who is a monitored person 1 and a toddler playing in a pool or the like and a monitoring terminal 4 carried by the monitored person 3. Be prepared one by one. Usually, there is a plurality of monitored persons 1 for one monitoring person 3, so that there are a plurality of drowning sensors 2. In addition, the number of the monitor 3 is not limited to one, and in the case of two or more, the number of the monitor terminals 4 is plural. Even if there are a plurality of monitoring terminals 4, each monitoring terminal 4 exhibits the same function independently of each other. One monitoring terminal 4 and a specific plurality of drowning sensors 2 form one group, and another monitoring terminal 4 and another plurality of drowning sensors 2 form another group. In this case, the device of the present invention is configured for each group. In this case, it is assumed that a communication method is selected and a frequency band to be used is assigned so that communication in each group does not interfere with communication in other groups. Hereinafter, a description will be given on the assumption that the device of the present invention includes one monitoring terminal 4 and a plurality of drowning sensors 2.

The drowning sensor 2 is integrally formed by accommodating each means described later in a predetermined housing, and has a size and lightness that can be attached to the vicinity of the top of the swimming cap 5 worn by the person 1 to be monitored. Is formed. In addition, the monitoring terminal 4 is formed to be small and light so that the monitoring person 3 such as an instructor of a swimming class or a guardian of an infant can hold it with one hand and hang it from the neck. These are indications of the size and lightness of the drowning sensor 2 and the monitoring terminal 4, and are not necessarily restricted by the above-mentioned indications. In addition, the drowning sensor 2
As a method of attaching to the head of the person, a drowning sensor 2 is attached to an object attached to the head such as a hair band or a headband other than the swimming cap 5.
May be attached.

<First Embodiment> As shown in FIG. 2, in the first embodiment, the drowning sensor 2 includes a submergence detecting unit 10, a drowning judging unit 11, a transmitting unit 12, and an alarm generating unit 13. The monitoring terminal 4 includes a receiving unit 20 and a notifying unit 21, and each unit is driven by a built-in battery. The notifying unit 21 includes a state displaying unit 22 and an alarm generating unit 23.

The submergence detecting means 10 includes a pair of drowning sensors 2
When water sinks below the surface of the water, water penetrates, and conversely, a pair of electrodes are provided at a position close to the surface of the housing of the drowning sensor 2 and a water hole that is immediately drained when floating above the surface of the water, and between the electrodes A predetermined voltage is applied at all times, and when it is in a submerged state, the submerged state is detected by a current flowing between the electrodes through water that has penetrated into the water hole or water present on the housing surface. . Note that the detection of the submerged state is not limited to the above-described electrical detection method, and for example, a method of detecting water pressure may be used.

The drowning judging means 11 has a clock generator and a counter, and counts the number of clocks during a period when an output signal indicating the submergence detection state of the submergence detecting means 10 is input to the counter. When the predetermined value is equal to or greater than a set value corresponding to a case in which the drowning sensor 2 has continued for a predetermined time, the monitored person 1 who is the wearer of the drowning sensor 2 is determined to be in a drowning state, and an output signal indicating a drowning determination state is output. Is configured. The predetermined time can be individually set within a range of several seconds to several tens of seconds, for example, according to the age and skill of the monitored person 1. However, the setting needs to be performed for each drowning sensor 2, but when the setting is not performed, a predetermined default value is used.

The transmitting means 12 sets the drowning judgment state and the drowning non-judgment state of the drowning judging means 11 as 1-bit state data, and uses the 1-bit data as a predetermined data communication method (for example, FSK (frequency shift keying) method or the like). ) And a radio signal in a predetermined frequency band. The medium of the radio signal is a radio wave for a special low power having a frequency of 4
Those having about 00 to 600 MHz can be used. A different frequency band is assigned to each of the drowning sensors 2 in advance so that a radio signal transmitted from each of the drowning sensors 2 does not cause interference on the monitoring terminal 4 side.

The alarm generating means 13 is configured to generate a predetermined alarm in response to the input of the output signal indicating the drowning judgment state outputted by the drowning judging means 11 judging the drowning state. The predetermined alarm is an alarm sound, an alarm message,
A warning light or the like that can be perceived by a sensory organ such as an ear or an eye by a monitor 3 separated from the monitor 1 is used. Thereby, the monitor 3 can easily confirm the location of the specific monitor 1 in a drowning state from among many monitors 1. Note that the alarm once generated is not released unless a reset switch (not shown) provided on the drowning sensor 2 is operated.

On the monitoring terminal 4 side, the receiving means 20 is configured to be able to separately receive the radio signals of the above-mentioned communication system transmitted from each drowning sensor 2. Further, receiving means 2
A value of 0 can specify the drowning sensor 2 in the drowning determination state from the 1-bit data and the reception frequency received for each drowning sensor 2.

The status display means 22 is configured to be able to display the identification number of the drowning sensor 2 in the drowning determination state specified by the receiving means 20 on a predetermined display screen. This allows
The monitor 3 can check who is in the drowning state among the plurality of monitored 1 from the display screen. Further, instead of or in addition to the identification number, attribute information such as the name of the monitored person 1 may be displayed. Further, the transmitting means 12 transmits the drowning time calculated by the drowning judging means 11 in addition to the transmission data, and the receiving means 20 receives the drowning time of each drowning sensor 2 and the state displaying means 22
However, it may be displayed on the display screen in addition to the display of the drowning state.

The alarm generating means 23 is configured to generate a predetermined alarm if at least one of the 1-bit data of each drowning sensor 2 received by the receiving means 20 indicates a drowning determination state. The predetermined alarm is issued by a monitor 3 such as an alarm sound, an alarm message, an alarm light, an alarm vibration, etc., in order to notify the observer at an early stage that any one of the monitored persons 1 is drowning.
Use what can be perceived by sensory organs. This allows
Even when the monitor 3 does not notice the screen display of the status display means 22, it is possible to reliably notify the monitor 3 of the occurrence of the drowning.

Of the means of the drowning sensor 2 and the monitoring terminal 4,
The analog circuit section for processing the analog current value of the submersion detecting means 10, the analog processing section of the transmitting means 12 and the receiving means 20, the analog processing sections of the alarm generating means 13 and 23, the digital signal processing section excluding the power supply circuit section, etc. Each of them is constituted by a microcomputer, and the digital signal processing part of each means is realized by executing a built-in program.

As another embodiment of the transmitting means 12,
Only the drowning judgment state of the drowning judging means 11 is determined by each drowning sensor 2
, And may be transmitted by a radio signal of the same frequency without distinction. In this case, since the transmission of the radio signal itself indicates the drowning determination state of each drowning sensor 2, the receiving means 20
When the monitoring terminal 4 receives the radio signal of the frequency, it is impossible for the monitoring terminal 4 to specify which drowning sensor 2 is in the drowning state, but it is confirmed that at least one of the drowning sensors 2 is in the drowning state. Becomes possible. Therefore, the alarm generating unit 23 may be configured to generate a predetermined alarm while the receiving unit 20 continues receiving the wireless signal. Further, the state display means 22 does not necessarily need to be provided. Further, the operation of the reset switch provided on the drowning sensor 2 may cancel the alarm of the alarm generation unit 13 and stop the transmission of the transmission unit 12. As a result, unless the resetting operation is performed for all the drowning sensors 2 in the drowning determination state, the alarm generation on the monitoring terminal 4 side is not canceled, and some of the monitored persons 1 are left unchecked in the drowning state. You can see that there is.

<Second Embodiment> As shown in FIG. 3, in the second embodiment, the drowning sensor 2 includes a drowning detecting unit 10, a drowning judging unit 11, a transmitting unit 12, a receiving unit 14, and an alarm generation. The monitoring terminal 4 includes a receiving unit 20, a notifying unit 21, a transmitting unit 24, and a designation input unit 25, and each unit is driven by a built-in battery. The notifying unit 21 includes a state displaying unit 22 and an alarm generating unit 23. In addition, the reference numerals of the respective units are given the same reference numerals, regardless of the specific implementation method, for those having the same basic functions between the respective embodiments. The same applies to the third and subsequent embodiments described later.

The submergence detecting means 10 and the drowning judging means 11
The description is omitted because it is the same as that of the first embodiment.

The transmitting means 12 sets the drowning judging state and the drowning non-judging state of the drowning judging means 11 as 1-bit state data, and transmits the 1-bit radio signal to a predetermined data communication system (for example, ARIB (corporation corporation radio wave). (Industry) Transmit using standard STD-16 or STD-30).
In ARIB standard STD-16 and STD-30,
The transmitting means 12 has a plurality of channels in a predetermined use frequency band, and the transmitting means 12 uses a unique channel assigned to its own drowning sensor 2 in advance, or the number of drowning sensors 2 is If the number is larger than the number, a vacant channel is searched and transmitted using the channel. The detection of an empty channel is performed by the receiving unit 14 confirming that another drowning sensor 2 is not using the channel to be detected, and that the receiving unit 14 does not receive the radio wave of the frequency assigned to the channel. When searching for an available channel and transmitting, signal transmission is performed intermittently,
Since the monitoring terminal 4 cannot identify from which drowning sensor 2 the transmission is made, in addition to the 1-bit data, its own sensor identification code (ID number) for each drowning sensor 2
And send it.

The receiving means 14 is configured to be able to receive a radio signal from a transmitting means 24 of the monitoring terminal 4 described later, receive a radio signal of an alarm generation request from the monitoring terminal 4, and output the alarm generation request. The signal is output to the alarm generating means 15. The transmitting means 24 of the monitoring terminal 4 also adopts the same data communication system as the transmitting means 12 of the drowning sensor 2,
The receiving means 14 receives the digitally coded alarm generation request.

The alarm generating means 15 is such that the receiving means 14 receives a radio signal of an alarm generation request from the monitoring terminal 4 and generates a predetermined alarm according to each type of alarm generation request according to the type of the alarm generation request. Is configured. The alarm generation request is digitally coded in advance from the monitoring terminal 4. The alarm generation request is unconditionally generated according to the code, the alarm is generated when the drowning determination unit 11 is in the drowning determination state, There are four types: one that generates an alarm when specified as a target, and one that generates an alarm when the drowning determination unit 11 is in a drowning determination state and the self is specified as an alarm generation request target. When the alarm generation request is of the first type, the alarm generation unit 15 unconditionally generates an alarm. For the second type,
If an output signal indicating a drowning judgment state is output from the drowning judging means 11, an alarm is generated. In the case of the third type, the sensor identification code attached to the alarm generation request is recognized, and an alarm is generated if the sensor identification code is its own sensor identification code or if it is included. In the case of the fourth type, an alarm is generated when both the second and third types of conditions are satisfied. The predetermined alarm is the same as the alarm generating means 13 of the first embodiment. Alarm generation means 15
In addition to the function of the alarm generating means 13 of the first embodiment, it is possible to specify the drowning sensor 2, that is, the monitored person 1, and generate an alarm. The user can first confirm only the location of the monitored person 1 who goes to rescue. The alarm once generated is released by the operation of a reset switch (not shown) provided in the drowning sensor 2 and the transmitting means 24 of the monitoring terminal 4
It can also be released by a release request sent from. Note that the method of canceling the alarm can be changed as appropriate.

The receiving means 20 of the monitoring terminal 4 has basically the same functions as the receiving means of the first embodiment except that the receivable communication system is common to that of the transmitting means 12 of the second embodiment. Is the same. Also, the status display means 2 which is the notification means 21
2 and the alarm generating means 23 are configured similarly to the notifying means 21 of the first embodiment.

The transmitting means 24 of the monitoring terminal 4 sends the above-mentioned four types of digital signals, such as an alarm generation request and an alarm clearing request, to the drowning sensor 2 by the transmitting means 1 on the drowning sensor side.
2 is configured to be able to transmit by a wireless signal of the same communication system. The alarm generation request and the alarm release request can be attached with one or more sensor identification codes of the other party to specify the alarm generation request target and the alarm release request target. The specification of each request target is performed by operating the specification input means 25 provided in the monitoring terminal 4. The designation input means 25 is configured such that, for example, the sensor identification code of the drowning sensor 2 displayed on the screen of the state display means 22 can be selected by moving a cursor on the screen or switching to a special designation input mode. The sensor identification code of the drowning sensor 2 displayed on the screen can be selected by moving a cursor or the like.

The main difference between the second embodiment and the first embodiment is that data communication from the monitoring terminal 4 to the drowning sensor 2 is possible, and the alarm generating means 15 of the drowning sensor 2 The point at which an alarm is generated based on an alarm generation request from the terminal 4 and the transmitting means 12 of the drowning sensor 2 can search for an empty channel using the receiving means 14. Even when the number is large, interference between the plurality of drowning sensors 2 can be prevented.

The communication system between the drowning sensor 2 and the monitoring terminal 4 is the same as that of the first embodiment when the number of the drowning sensors 2 is not insufficient in the frequency band allocated to each drowning sensor 2. A different frequency may be fixed every time, and only the determination result of the drowning determination unit 11 may be transmitted. In this case, since the sensor identification information is inherent in the use frequency of each wireless signal and the drowning sensor 2 can be specified by the use frequency, the sensor identification code does not need to be intentionally added. Further, the drowning sensor 2 and the monitoring terminal 4
As a communication method between them, another communication method capable of preventing interference between the plurality of drowning sensors 2, for example, a frequency hopping type spread spectrum method or the like may be used.

<Third Embodiment> As shown in FIG. 4, in the third embodiment, the drowning sensor 2 includes a submergence detecting unit 10, a transmitting unit 16, a receiving unit 14, and an alarm generating unit 17. The monitoring terminal 4 includes a receiving unit 26, a submergence time measuring unit 27, a submergence time display unit 28, and a transmitting unit 24.
And designation input means 25, each of which is driven by a built-in battery.

The submergence detecting means 10 is the same as that of the first and second embodiments, and the receiving means 14 is the same as that of the second embodiment. I do.

The transmitting means 16 on the drowning sensor 2 side sets the submergence detection state and the submergence non-detection state of the submergence detecting means 10 as 1-bit state data, and transmits the 1-bit data radio signal as in the second embodiment. Data communication method (for example, AR
The transmission is performed using IB standard STD-16 or STD-30). ARIB STD-16 and STD-
30 has a plurality of channels within a predetermined use frequency band, and the transmitting means 16 has its own drowning sensor 2 in advance.
Or if the number of drowning sensors 2 is greater than the number of channels, an empty channel is searched for and transmitted using the channel. The detection of an empty channel is performed by the second
As in the case of the embodiment, the receiving means 14 confirms that another drowning sensor 2 is not using the channel to be detected by not receiving the radio wave of the frequency assigned to the channel. When transmitting by searching for an available channel, signal transmission is performed intermittently, and since the monitoring terminal 4 cannot identify from which drowning sensor 2 the transmission is made, the signal is added to the 1-bit data. Each drowning sensor 2 is transmitted with its own sensor identification code (ID number). Transmission means 12 of the first and second embodiments
The difference from the above is the content of the transmission data. The drowning sensor 2 of the third embodiment does not include the drowning judging means 11 for judging the drowning on the monitoring terminal 4 side. Instead of the result of the drowning determination unit 11, the detection result of the submergence detection unit 10 is used as the transmission data.

The alarm generating means 17 causes the receiving means 14 to receive the radio signal of the alarm generation request from the monitoring terminal 4 and generate a predetermined alarm under each of the generation conditions according to the type of the alarm generation request. Is configured. The alarm generation request is digitally coded from the monitoring terminal 4 in advance, and there are two types, one that generates an alarm unconditionally according to the code and one that generates an alarm when the self is designated as an alarm generation request target. When the alarm generation request is of the first type, the alarm generation unit 17 unconditionally generates an alarm. In the case of the second type, the sensor identification code attached to the alarm generation request is recognized, and an alarm is generated when the sensor identification code is its own sensor identification code or when it is included. The predetermined alarm is the same as the alarm generating means 13 of the first embodiment or the alarm generating means 15 of the second embodiment. Since the alarm generation means 17 can specify the drowning sensor 2, that is, the monitored person 1 and generate an alarm, similarly to the alarm generation means 15 of the second embodiment, the monitoring person can monitor a plurality of drowned persons. From inside, one can first confirm only the location of the monitored person 1 who goes to rescue. The alarm once generated can be released by an operation of a reset switch (not shown) provided on the drowning sensor 2 and can also be released by a release request transmitted from the transmission means 24 of the monitoring terminal 4. Note that the method of canceling the alarm can be changed as appropriate.

The receiving unit 26 of the second embodiment is different from the receiving unit 20 of the second embodiment in that the receiving unit 26 of the monitoring terminal 4 is configured to be able to receive the radio signal of the predetermined communication system transmitted by the transmitting unit 16 of each drowning sensor 2. The same is true. The difference from the second embodiment is that the contents of the received data and the received data are output to the submersion time measuring means 27.

The drowning time measuring means 27 inputs the state data of the drowning detecting means 10 of each drowning sensor 2 received by the receiving means 26 and, for each drowning sensor 2, the state data from the time when the state data transits to the drowning detecting state. The elapsed time can be measured. Various specific circuit configurations are conceivable. For example, a built-in clock is provided, and a first register for storing a submersion start time at which the state data has transitioned to the submergence detection state for each drowning sensor 2 is provided, and a difference between the submergence start time and the current time is calculated as a submersion time. The second register is sequentially stored in another second register, and when the state data transits to the submergence non-detection state, the second register is forcibly reset to 0, and the reset is continued while the state data is in the submergence non-detection state. To be configured. In the above configuration example, when the receiving unit 26 adds the submersion start time data measured by the submersion detecting unit 10 of each drowning sensor 2 to the state data, the received submersion start time is directly stored in the first register. Just remember.
In particular, when the transmission timing of the transmitting means 16 of each drowning sensor 2 is unspecifiedly delayed from the time when the submersion detecting means 10 detects the submergence, the submersion start time is added to the transmission data of the transmitting means 16 of each drowning sensor 2. The accuracy of measuring the submersion time improves. However, if the delay is negligible, it is not necessary to measure the submergence start time by the submergence detecting means 10 and add it to the transmission data.

The immersion time display means 28 displays the immersion time of each drowning sensor 2 output from the immersion time measuring means 27.
It is configured to sequentially display the information along with the sensor identification code on a predetermined display screen. Further, instead of or in addition to displaying the sensor identification code, attribute information such as the name of the monitored person 1 may be displayed.

The transmitting means 24 of the monitor terminal 4
A digital signal such as an alarm generation request and an alarm release request is sent to the drowning sensor 2 by the transmitting means 16 on the drowning sensor side.
It is configured to be able to transmit by a wireless signal of the same communication system as that of the first embodiment. The alarm generation request and the alarm release request can be attached with one or more sensor identification codes of the other party to specify the alarm generation request target and the alarm release request target. The specification of each request target is performed by operating the specification input means 25 provided in the monitoring terminal 4. The designation input unit 25 is configured such that, for example, the sensor identification code of the drowning sensor 2 displayed on the screen by the submersion time display unit 22 can be selected on the screen by moving a cursor or the like. The sensor identification code of the drowning sensor 2 displayed on the screen by switching can be selected by moving a cursor or the like.

In the third embodiment, the drowning sensor 2 does not judge the drowning state of the person 1 wearing the drowning sensor 2, and the drowning time for each drowning sensor 2 is displayed on the drowning time display means 28 of the monitoring terminal 4. The display allows the monitor 3 to determine the drowning state of each monitored person 1 from the display. In order to generate an alarm on the drowning sensor 2 side, the monitoring person 3 sends the alarm to the transmitting unit 24 on the monitoring terminal 4 side, as in the second embodiment.
It is necessary to transmit an alarm generation request from the user to the drowning sensor 2. However, since each of the drowning sensors 2 does not include the drowning judging means 11 as in the second embodiment, in order to specify the drowning sensor 2 in the drowning state and to generate an alarm, the monitor 3
Designates the drowning sensor 2 to be the alarm generation request target from the designation input means 25 of the transmission means 24.

<Fourth Embodiment> As shown in FIG. 5, in the fourth embodiment, the drowning sensor 2 includes a submergence detecting unit 10, a transmitting unit 16, a receiving unit 14, and an alarm generating unit 17. The monitoring terminal 4 includes a receiving unit 26, a submergence time measuring unit 27, a submergence time display unit 28, and a transmitting unit 24.
, A designation input unit 25, a drowning determination unit 29, and a notification unit 30, all of which are driven by a built-in battery.

The drowning sensor 2 of the fourth embodiment is similar to the third embodiment.
The configuration is exactly the same as that of the drowning sensor 2 of the embodiment.
The monitoring terminal 4 of the third embodiment is different from the monitoring terminal 4 of the third embodiment.
In addition, a drowning judging means 29 and a notifying means 30 are added. Description of each means common to the third embodiment is omitted.

In the fourth embodiment, unlike the first and second embodiments, the drowning judging means 29 is provided on the monitoring terminal 4 side. This is for the monitoring terminal 4 to automatically perform the drowning determination performed by the monitor 3 based on the display of the submersion time display means 28 in the third embodiment. The drowning judging means 29 inputs the drowning time measured by the drowning time measuring means 27 for each drowning sensor 2 from the drowning time measuring means 27,
Compared with a predetermined time set for each drowning sensor 2, when the submersion time exceeds the predetermined time, the drowning sensor 2
It is configured to determine that the monitored person 1 who is the wearer of is a drowning state. The predetermined time can be individually set within a range of several seconds to several tens of seconds, for example, according to the age and skill of the monitored person 1. However, the setting needs to be performed for each drowning sensor 2, but when the setting is not performed, a predetermined default value is used.

By providing the drowning judging means 29 in the drowning time display means 28, the drowning time display means 28 displays the drowning time of the drowning sensor 2 in the drowning state with the drowning sensor 2 not in the drowning state. In distinction, it is possible to display which drowning sensor 2 is in a drowning state so that the monitor 3 can easily recognize it. That is, the submersion time display means 28
However, a function of specifying the monitored person 1 and displaying a state of whether or not the user is in a drowning state is added. The drowning judging means 29
Is provided separately from the submersion time display means 28, the submersion time display means 28 has the above-described state display function,
It is necessary to separately input the drowning judgment output of each drowning sensor 2 from the drowning judging means 29.

The notification means 30 is composed of a submersion time display means 28 having the above-mentioned status display function and an alarm generation means 31. The warning generation means 31 is configured to generate a predetermined warning by inputting a drowning determination output signal output when the drowning determination means 29 determines that any of the drowning sensors 2 is in a drowning state. I have. The predetermined alarm is generated in the same manner as the alarm generating means 23 of the first and second embodiments.
In order to notify the observer early that any one of the monitored persons 1 is drowning, an alarm sound, an alarm message, an alarm light,
An alarm vibration or the like that can be perceived by the monitor 3 by the sensory organ is used. As a result, the monitoring person 3 can set the submersion time display means 28
Even if the user does not notice the screen display, the monitor 3 can be reliably informed of the occurrence of the drowning.

<Fifth to eighth embodiments> Fifth to eighth embodiments
As shown in FIGS. 6 to 9, the drowning accident monitoring device of the embodiment is different from the first to fourth embodiments in that a request transmitting unit 32 is added to each monitoring terminal 4 and each drowning sensor 2 The transmission request receiving means 18 is added to the configuration shown in FIG.

The request transmitting means 32 is the same as the STIB of the ARIB standard, which is the same as the transmitting means 12 and 16 of the second to fourth embodiments.
The drowning sensor 2 is designated by attaching a sensor identification code in the data communication method of -16 or STD-30, and a transmission request signal for requesting transmission of a radio signal from the transmission means 12, 16 of the drowning sensor is wirelessly transmitted. It is configured to be. This transmission request is automatically executed sequentially while selecting all the drowning sensors 2 in order using an available channel among the plurality of channels of the data communication method. It should be noted that the transmission request can be recognized as being transmitted on the drowning sensor 2 side by transmitting a digital code indicating that.

The transmission request receiving means 18 includes the request transmitting means 3
2 is configured to be able to receive the transmission request signal transmitted. Specifically, a code indicating a transmission request and a sensor identification code are identified from the data of the transmission request signal, and when the sensor identification code is its own sensor identification code, the self is designated as a transmission request target. Recognize that there is.

In the sixth to eighth embodiments, the transmission request receiving means 18 generates an alarm of the receiving means 14 except for a function of recognizing that the request is a transmission request and that the self is designated as a transmission request target. Since it is the same as the so-called receiving function part other than the function of recognizing the request and the alarm release request, the receiving function part is shared and the transmission request receiving means 18 and the receiving means 14 are integrally configured. Further, the recognition function portions of the transmission request receiving means 18 and the receiving means 14 are the same in circuit configuration except that the recognition target is different, so that the same circuit configuration can be commonly used. Further, also on the monitoring terminal 4 side, the transmitting means 24 and the request transmitting means 32 are integrally formed as described above.

The transmitting means 12, 16 of each drowning sensor 2
Unlike the second to fourth embodiments, when the transmission request receiving unit 18 receives a transmission request signal designating itself as a transmission request target, the transmission request receiving unit 18 receives the transmission request signal similarly to the second to fourth embodiments, respectively. The function is changed so that a wireless signal having its own sensor identification code added to the status data is transmitted using the same channel as the transmission request signal.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration and a use form of a drowning accident monitoring device according to the present invention.

FIG. 2 is a block diagram of a first embodiment of a drowning accident monitoring apparatus according to the present invention.

FIG. 3 is a block diagram of a second embodiment of the drowning accident monitoring apparatus according to the present invention.

FIG. 4 is a block diagram of a third embodiment of a drowning accident monitoring apparatus according to the present invention.

FIG. 5 is a block diagram of a fourth embodiment of a drowning accident monitoring apparatus according to the present invention.

FIG. 6 is a block diagram of a fifth embodiment of the drowning accident monitoring device according to the present invention.

FIG. 7 is a block diagram of a sixth embodiment of the drowning accident monitoring apparatus according to the present invention.

FIG. 8 is a block diagram showing a seventh embodiment of the drowning accident monitoring apparatus according to the present invention.

FIG. 9 is a block diagram of an eighth embodiment of a drowning accident monitoring apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Monitored person 2 Drowning sensor 3 Monitor 4 Monitoring terminal 5 Swimming cap 10 Submergence detecting means 11 Drowning judging means (drowning sensor side) 12, 16 Transmission means (drowning sensor side) 13, 15, 17 Alarm generating means (drowning sensor) 14) Receiving means (drowning sensor side) 18 Transmission request receiving means 20, 26 Receiving means (monitoring terminal side) 21, 30 Notification means 22 Status display means 23, 31 Alarm generating means (monitoring terminal side) 24 Transmission means (monitoring) Terminal side) 25 Designation input means 27 Submersion time measuring means 28 Submersion time display means 29 Drowning judgment means (monitoring terminal side) 32 Request transmission means

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigeru Nonami 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi, Osaka F-term in Osaka Gas Co., Ltd. (reference) 2E184 JA09 KA11 MA01 MA07 MA09 MA10

Claims (8)

[Claims] 1. A submergence detecting means capable of detecting that a human body part at a mounting position is in a submerged state, wherein at least the submergence detecting means can be mounted on a human head, and a submergence detecting state of the submerged detecting means is provided. If the wearer is in a drowning state automatically or based on a request from the outside when a predetermined time has passed, transmission of a radio signal to notify a third party that the wearer is in a drowning state and / or generation of an alarm Drowning accident monitoring device. 2. A drowning sensor worn by a person to be monitored and at least one monitoring terminal used by the monitor, wherein the drowning sensor detects that a human body part at the wearing position is in a submerged state. Possible drowning detecting means, drowning judging means for judging that the wearer of the drowning sensor is in a drowning state when the drowning detecting state of the drowning detecting means has continued for a predetermined time, or drowning judging state of the drowning judging means or Transmitting means for transmitting a radio signal indicating a drowning non-determination state or both states, and warning generation means for generating an alarm when the drowning determination means determines a drowning state, and at least the submergence detection means The monitoring terminal can be mounted on a human head, and the monitoring terminal can receive the wireless signal transmitted by the transmitting unit of the drowning sensor; and the wireless signal of the receiving unit. A drowning accident monitoring means for detecting a judging state of the drowning judging means from the received content of the drowning means and notifying means for at least one of displaying the judging state and issuing an alarm indicating the drowning judging state. apparatus. 3. A drowning sensor to be worn by a person to be monitored and a monitoring terminal to be used by the person to be monitored are provided, at least one each. The drowning sensor detects that a human body part at a wearing position is in a submerged state. Possible drowning detecting means, drowning judging means for judging that the wearer of the drowning sensor is in a drowning state when the drowning detecting state of the drowning detecting means has continued for a predetermined time, or drowning judging state of the drowning judging means or Transmitting means for transmitting a radio signal indicating a drowning non-determination state or both states; receiving means capable of receiving a radio signal from the monitoring terminal; and the receiving means receiving a radio signal for an alarm generation request from the monitoring terminal. Then, at least when the drowning judging means is in a drowning judging state, or when the self is designated as an alarm generation request target, or when both are generated, an alarm is generated. It and a warning generating means that, and,
At least the submergence detecting means can be mounted on a human head, and the monitoring terminal generates a warning toward the drowning sensor, a receiving means capable of receiving the wireless signal transmitted by the transmitting means of the drowning sensor. A transmitting unit for transmitting a request radio signal, and detecting a determination state of the drowning determination unit from the reception content of the wireless signal of the receiving unit, displaying the determination state or generating an alarm indicating a drowning determination state. And a notification means for performing at least one of the following. 4. A radio signal of an alarm generation request transmitted by the monitoring terminal is provided with sensor identification information of a drowning sensor to be requested to generate an alarm, and the alarm generation means is provided with the radio signal. 4. The drowning accident monitoring device according to claim 3, wherein it is possible to recognize from the sensor identification information that the self is designated as an alarm generation request target. 5. A radio signal transmitted by the drowning sensor is provided with its own sensor identification information, and the notifying means specifies the wearer in a drowning state based on the sensor identification information to determine the drowning. 5. The drowning accident monitoring device according to claim 2, wherein at least one of display of a judging state of the means and an alarm indicating drowning judging state is performed. 6. A drowning sensor to be worn by a person to be monitored and a monitoring terminal to be used by the monitor are provided at least one each. The drowning sensor detects that a human body part at a wearing position is in a submerged state. Possible submergence detecting means, transmitting means for transmitting a radio signal with its own sensor identification information added to the state data indicating the submergence detection state or submergence non-detection state or both states of the submergence detection means, and from the monitoring terminal Receiving means capable of receiving a wireless signal with the sensor identification information, and the sensor identification information attached to the wireless signal from the monitoring terminal received by the receiving means, wherein the self is designated as an alarm generation request target Alarm generating means for generating an alarm when it is recognized, and at least the submergence detecting means can be mounted on the head of the human body, the monitoring terminal, Receiving means capable of receiving the wireless signal transmitted by the transmitting means of the water sensor, and measuring the elapsed time of the submerged state for each of the drowning sensors based on the state data of the wireless signal and the sensor identification information attached thereto. Submersion time measuring means, submersion time display means for displaying the submersion time measured by the submersion time measurement means for each of the drowning sensors, and a radio signal of the alarm generation request with the sensor identification information of the drowning sensor to be requested to generate an alarm A drowning accident monitoring device comprising: 7. The drowning device according to claim 1, wherein the drowning time is determined to be a drowning state when the drowning time measured by the drowning time measuring means is longer than a predetermined time, instead of or in addition to the drowning time display means. Judgment means, detecting the judgment state of the drowning judgment means from the reception content of the radio signal of the receiving means, identifying the wearer in the drowning state based on the sensor identification information, display of the judgment state 7. The drowning accident monitoring device according to claim 6, further comprising: a notifying unit that performs at least one of an alarm indicating a drowning determination state. 8. The drowning sensor, comprising: a request transmitting unit that wirelessly transmits a transmission request signal for requesting transmission of the wireless signal from the transmitting unit of the drowning sensor by designating the drowning sensor; Comprises a transmission request receiving means capable of receiving the transmission request signal transmitted by the request transmission means, wherein the transmission means of the drowning sensor includes a transmission request in which the transmission request receiving means is designated as a transmission request target by itself. 8. The drowning accident monitoring device according to claim 5, 6 or 7, wherein when receiving a signal, the wireless signal is transmitted with its own sensor identification information.